Fmx transmission vs c6. 75 C6 Overall length: 34.

Fmx transmission vs c6 The C6 is the strongest automotive automatic transmission. The tail end was just a whisker longer on the C6, but not too long that I couldnt use the original driveshaft. There are four different case types for four engine families Aug 24, 2009 · i have a 351c 4bbl with a fmx in my 69 Mach. FMX's and C6's share output shaft size but the input shaft is smaller on an FMX vs C6. Sep 1, 2013 · Apparently the crossmember and mount are the same for a C6 and FMX. S. Note: The mounting pad is usually a part of the extension housing, but the graphic shows it on the maine case. here), bearing and lube flow design, and a few zillion other factors like pump output, control systems, and fluid type. Apr 7, 2006 · Clutch, Transmission, Differential, Axle & Transfer Case - C6 vs. Jun 28, 2001 · At some time it appears that my transmission has been changed from a c6 to an fmx, I was wondering, what are the differences between these transmissions? Also did they both use the same housings because there is a bolt exactly where the adjustment screw is on the c6 but then the actual adjustment screw for mine is located where it should be for Mar 22, 2005 · Clutch, Transmission, Differential, Axle & Transfer Case - C6 FMX or AOD - Rebuilding a 65 Ford, The fellow doing the work says that I can choose between a C6 and an FMX, I thought that their was a non electronic auto tranny from Ford that had overdrive. Dec 12, 1999 · FMX trannies are easy to come by in Canada,because wants them. The comparison picture with two rods side by side are the 71 - 73 FMX and C6 rods. (the engine was pretty modified w/a 4. Ford Transmission Dimensions Dimension "C" is the distance from the bellhousing to the center of the transmission mounting pad. The clutches? Jun 21, 2013 · First introduced for ’66 as the C6 “Dual Range” Cruise-O-Matic, the C6 is a simple heavy-duty three-speed automatic transmission. He finally put in a C6 and never had a transmission related problem again. When it comes to transmissions if it aint a c4 or c6 I don't know jack squat about them or their interchangeability. I have a '66 galaxie 2 door that had a 390 with what I'm pretty sure was a cruise-o-matic transmission with a floor shift. The thing about a performance Cleveland engine is, they usually are a little soft on the bottom end. When I got Jul 9, 2014 · Is there a big difference from the c6 to c4? Is the FMX similar t. I picked up a c6 (For a small block )@ a local salavage Oct 4, 2002 · FMX's are easy. The transmission's oil pan attaches to the bottom of the transmission with several retaining bolts, which are located around the entire lip of the pan. Post Jul 09, 2014 #1 Dec 27, 2004 · FMX vs. Apr 25, 2006 · Clutch, Transmission, Differential, Axle & Transfer Case - cruise-o-matic vs C6 - here's my delima, and i hope i'm in the right forum. Count the total number of oil pan retaining bolts. Ford used the FMX up through 1980; it was replaced with the AOD the next year. Jun 4, 2016 · The C6 was a very robust (and heavy) transmission that Ford used in a multitude of vehicles and industrial equipment including the F600 medium duty trucks. The only time I'd say go C6 is if you can get either at the same price. The C6 is all one piece. During install, I let the weight of the car fall on top of the crossmember while only 1 side was bolted in which I think bent the crossmember slightly (entire weight of car w/ big Apr 25, 2007 · I had to have a different driveshaft made up for the C6. I'm wondering what the difference is between a FMX that would go into a the 2 set ups. Classic Tech Jul 15, 2008 · What has to be done to convert a 64 MX Cruise O to a 66 C6 transmission? I think there should nt be any problems because the 66 T-bird was available with a 428 / C6 and a 390 / MX combination. It worked fine but after reading some posts in this forum, I understand that FMX wasn't installed until late 60's. Is there a easy way for me to crawl under and visualy tell the difference?? TIA guys. Dennis Oh. The first one was stock and the second one was professionally built for HD/racing applications by a reputable trans guy. Mar 12, 2008 · On a C6 it more than just internal weight. It can be done but they are extremely touchy for some weird reason. May 16, 2010 · I think you guys are right. it is a strong tranny it's weakest link is the cast iron 2nd gear band, replace it with a steel "flex band" and it is a very reliable tranny, art carr and tci seem to have the most parts available for it and both have stal convertors in the 2200-2600 range, i beleive This B&M small-block C6 looks a lot like the big-block C6 unit except it’s a small-block six-bolt bellhousing design. C6 , FMX , C4 transmission lengths. 2) C4 slip yokes are always 28 splines. 40 1st gear. BUSHING Apr 29, 2007 · I recently needed to switch out my transmission and have found that the original FMX doesn't have the rebuild supplies as readily available as the C6. A 351-equipped Mustang should have an FMX transmission, not a C4. Most shops are reluctant to work on FMX transmissions for some reason. The car was my dads from 1972 until 2004,now it's mine,the car had sat from 1988-1995 then from 2004-2009 total of 12 yrs. They are simple, very stout and have good aftermarket support. Please Don't Ask Me Any Tough Questions As: "I'm Saving Up MY Memory For When I Develop Alzheimer's" 78 F-150 429CJ C6 ,Silver w/Explorer Pkge 641/2 Mustang,Pre-World's Fair Car #8092 64 Fairlane S/C waiting for a 390-4spd. The tailshaft on the FMX is cracked, so should I try and change the tailshaft or look for a C4 or C6 (running an old 302)? Does anyone know the difference in Mar 31, 2015 · 1) C4 output shafts usually have 28 splines, though rarely 25 splines. If the pan uses 13 bolts, the transmission is a C3. 0 with a AOD. *NOTE* Many assume the C6 was only available with a 351 equipped with a 4V but in fact you could get a C6 with a 351 2V in 1971 - 1973. 75 C6 Overall length: 34. I have an acquaintance that likes C4 transmissions for racing. An ironic footnote to this story is the weighty cast-iron FMX transmission, which remained in production until 1981 behind 351W small-block engines. I would also be changing Feb 29, 2012 · During C4, C6, or FMX installation, fill the torque converter with a minimum of one quart of transmission fluid to both prime the pump and ensure lubrication on start-up. It was very similar to the C4 transmission but could handle greater power. Get a quote on your FMX rebuild and compare. So, what transmission do you really have? Mar 20, 2010 · The Ford C6 transmission was a heavy-duty automatic transmission built by the Ford Motor Company between 1966 and 1996. We had a 70 Mach 1 with a 351 C that ate two FMX trannies before the C6 went in. The FMX was manufactured from 1968 to 1979, when the Fairfax Transmission plant was closed. link Ford C6 transmission - Wikipedia, the free encyclopedia My 69 and many others has the FMX transmission. this means that dimension "C" is usually longer than dimension "B". 755" WIDE BRONZE C6 / AOD / FMX image #034 Item #36034B: $5. The bellhousing is integral. Jul 23, 2008 · In stock form the FMX is a medium duty trans. As others have posted, I would repair the C6 and not have to worry with dealing with different driveshaft's and neutral safety switch. Oct 18, 2007 · C6 - 140 lbs FMX - 160 lbs Ford-o-Matic (pre-FMX), cast iron case - 228 lbs Converters are roughly 30lbs +/-The FMX was the basis on the AOD transmission design, so it's not necessarily a bad transmission. Any help will be greatly appreciated. 5 liters of transmission oil (ATF Type F only) and is regulated by an additional radiator in the main water cooler. Did Ford put C6 transmissions behind the FE blocks? in 1968 Mustangs? A quick cold start up and drive of a 1969 Mustang 302 with an FMX transmission that is for sale. Really on every trans. Jul 12, 2004 · 86gt t-roof fresh 306 with gt42 turbo comp cams poly intake, fcam, y303 heads t5z (for sale) new performance aod in the works 355 fms rear, ssm, comp engeneering Apr 29, 2018 · That's very unusual for the modulator to leak at the crimp. Mar 12, 2017 · As for the converter regarding stall. C6's are big, and one solid chunk of aluminum. C6 Gear Ratios. C4 has bolt-on bellhousing and is all aluminum. The PO used a large U bolt to hold the transmission to the crossmember. Usually the diaphragm ruptures and the engine vacuum sucks tranny oil into the engine. The Ford C6 transmission was a heavy-duty automatic transmission built by the Ford Motor Company between 1966 and 1996 for use with large, powerful big-block V8 engines. As with the C4 and C10, it’s a three-speed, but gets its ratios by means of a single planetary known as a dual-compound type. It was an easy off-the-shelf solution for Ford, which needed the FMX to keep up with production demands when there weren’t enough C4 and C6 transmissions to go around. . May 11, 2008 · I have a 69 Mach 1 with a FMX trans and a 91 mustang 5. Dec 7, 2009 · Bands vs. 1968/ X is the FMX. C6 output shafts usually have 31 splines, but sometimes have 10 splines or rarely 3 splines. By the way Ford started using the Fmx in 1967. Ist what has to happen on a shift. In stock form these transmissions can take up 500 hp ( correct me if i am wrong ). Feb 7, 2014 · I'm new to this forum. 50 posi, slicks & street trim Dec 18, 2024 · One thing to consider is the power loss with a C6. This is an exaggeration, but the FMX is a heavy, complicated and antiquated design. Later, "Cruise-O-Matic" was used as a marketing term for ALL Ford 3-speed automatics and the original Cruise-O-Matic became the FMX. The FX is going to be not drastically different from the FMX but you should use the correct year Trans. Oct 14, 2003 · An FMX is kinda like a cross between a c4 and c6. Just going on memory, the C6 cost about ~40 hp more than the FMX. He said that 1970 and newer C4's have a larger input shaft? Mar 20, 2014 · The FMX used a Ravineaux planetary gearset. FMX's are *harder* to find a *variety* of parts for than a C4. Aug 6, 2003 · C4 C5 FMX Transmission differences? a c5 is basicly a c4 with electronic lock up the case is the same and most of the internals are the same main outside difference is the c5 pan is deeper than the c4 to conseal the electronic lockup silanoid but the same bolt pattren this makes a cheap way to get a deep pan for better cooling on a c4 just use Feb 12, 2009 · C6 trans 28 spline vs 31 spline. Most are corrected when a rebuild is performed. the 351W block and where the rear of the C6 transmission ends up. Apr 10, 2004 · FMX bloody lot (cast iron case and bell in some cases)heavier than C-6 (weight wise) planetary gearsets give trouble (thrusts wear out quickly) very similar to a big version of a BW35 (maybe BW35 Aussie only don't know), over here can't get parts or shift kits of any quality. Feb 23, 2008 · The Fmx is a very strong transmission as it combines internal C6 and small case parts with a very beefy cast iron case to withstand the beating of any stock engine Ford produced. 46:1 Third 1. Question Did 351 c6 combination come out standard in the 69 ? Do C6 transmittion come in diffent sizes, ie the later model were phisicly larger the an earlier model? I understand the tail shaft needs to shortened and the linkages need to adapted. The C6 is used more frequently, especially in high torque applications like drag cars. The FMX is rarely installed, but was already in 1968 in Ford and Mercury models with more steam in use. this is where a C6 has the problem robbing power. What is the good and bad on the FMX transmission vs. Originally, the FMX was called Cruise-O-Matic. Transmission Filter Gasket Kit FMX 1968-1973. It differs in that the dipstick tube goes into the case in the FMX and into the side of the pan on the Borg Warner. The choice of the C6 would be a good choice if your engine is producing a ton of torque and HP. 3) The 390 is an FE block. C6 cross member. Sunlit Gold 80,000 miles Oct 10, 2005 · Looking for a COMPLETE shifter for my daughters 70 coupe, right down to the rod and the way the rod connects to the tranny. There are some upgardes avaliable now for the FMX but not like the C4 and C6. 47 2nd, C4/C6 has 1. Owners of 410 and 428 engines only. Mar 22, 2005 · Clutch, Transmission, Differential, Axle & Transfer Case - C6 FMX or AOD - Rebuilding a 65 Ford, The fellow doing the work says that I can choose between a C6 and an FMX, I thought that their was a non electronic auto tranny from Ford that had overdrive. C4/C6 has 2. For instance, the rear pump was deleted with the FMX redesign. Manual. 68-Mustang. So I'm working on a 1969 Mustang Mach 1 351W 4v. It featured three forward speeds and reverse, and was built around a Simpson planetary gearset . By adding a Gear Vendors Under/Overdrive to these transmissions you have an unbeatable package far superior to any factory overdrive automatic and with 6 close ratio gears … Continue reading Ford 3-Speed Auto → Apr 20, 2012 · So ive decided to swap out the FMX for a C6, even though a while ago I said i wasnt interested in that swap. Us parts sellers would starve to death if we depended on selling FMX parts. An FE block C6 will only bolt to FE blocks. First 2. Sep 6, 2004 · Clutch, Transmission, Differential, Axle & Transfer Case - C6 vs FMX Trans - I am considering changing the FMX in my 67 F100, 352 ci with a C6 transmission. Jun 7, 2024 · FMX Transmission Cross Reference and Interchange Chart Search Transmissions by Make and Model Ford C4 | Ford C6 | Ford FMX | GM 4L60 | GM 4L80E | GM Powerglide Aug 3, 2016 · Fmx was the Ford variant of the cast iron small case Borg Warner. i'm pretty sure Art Carr and TCI boths still make stall convertors as well. Based on that, I would rather have an FMX over a C6 anytime so long as weight is not an issue. I've heard arguments that say the C6 is a better trans and I've heard people claim the FMX is better. Apr 21, 2008 · There's no reason to prefer a C6 over an FMX unless you're making really big torque numbers. It's much better then a c4 but smaller then a c6. FMX has bolt-onaluminum bellhousing and cast iron transmission body/case with aluminum tailshaft. This was in the mid-60s I think. Just unbolt the main case from the bell likeyou would a std transmission. Got a Marti Report on it and it's supposed to have a FMX transmission. Jan 1, 2023 · I need help trying to figure out the best transmission for my 1969 Mach 1. Those who think that the 400 is stronger simply don't know how to build a C6 which is a VERY difficult transmission to build properly for very high horsepower applications. I think it is a FMX. 8K views 1 reply 2 participants last post by FoMoCo Jun 29, 2003 Jun 22, 2007 · Not much difference there. May 24, 2009 · Just about any transmission would be a better choice. Transmission fluid is essential in a car to allow the components to move swiftly while at the same time, ensure there is no overheating or slippage. I will be running a 3. Jun 3, 2004 · A very good box for that reason. 00 The gearbox holds 10. Just to get the most of what you have fixing the FMX makes sense. I learned something today (actually got off my butt and checked the MPC). IMO if you're going to go to the effort of doing a transmission swap put in a 4-speed, an AOD or 4R70W. I'd keep the FMX too, unless I was short of cash and had the C-6 on hand. P. Mar 6, 2003 · If it's cast iron, and is a 3-speed auto, that is an FMX. I dont think i would want to use a C4, because of the extra cost of an aftermarket big block bellhousing, the money for which could be used to improve a C6. C6 & FMX use 31 spline outputs. Jan 5, 2014 · C6 and AOD both are aluminum with cast-on bellhousings. Please tell me if I'm wrong, and if I'm not then please explain Find Speedometer Cables Ford Transmission Make and get Free Shipping on Orders Over $109 at Summit Racing! Ford, C4/C6/AOD/FMX, Polyethylene Jacket, Black, Each May 10, 2005 · 1948 - 1956 F1, F100 & Larger F-Series Trucks - FMX vs C4 vs C6 - I just figured out that my son's truck has an FMX instead of a C4 like we originally thought. I actually picked up a FMX core off of craigslist locally that was removed from a 1969 Mustang 351W 2V. This case is also ribbed for strength. 46 Your engine won't see the difference. C6 Jump to Latest 2. Sep 1, 2009 · You can use your same transmission cross member and there are another set of mounting holes on the frame mount to allow for either the C-6 or the FMX. C6 parts do sell fairly regularly for us. 5 C6 Fnt of Bell to Mount: 22. I am putting in a different fmx and when I tried to use the mount I noticed the holes to bolt to the transmission were too far apart. Jan 13, 2007 · thecast iron 2nd gear band is the weakest link in the FMX trans, i'd suggest replacing it with a steel "Flex" band. 00:1 rear end. The AOD family is based on the FMX design, which was in terms of shift quality and general flexibility was the best of the 3-speed Ford automatics. Also had to trim the transmissions ribs between the main body and what would be a bellhousing, the C6 has no seperate bellhousing. Mar 17, 2003 · The FMX is NOT a strong transmission and does not take to performance mods very well, but it is true that it robs less hp than a C6. I can't remember now if I was able to use the FMX driveshaft on the C-6 or not. Description: This product is a collection of three original Ford transmission manuals: FMX Automatic Transmission Diagnosis and Service (Course 1715-108), FMX Transmission Principles of Operation (Course 1715-106-INN1) and the Automatic Transmission Diagnosis – Programmed Instruction Book (Volume 70 S6-L2, Course 7530). Sep 28, 2016 · The later versions of the FMX were only a bit heavier than the C4 or C6, as Ford went to aluminum bellhousings and tailshafts housing, so only the main trans body was still cast iron. What has to spin backwards, start form a stop, ect. I need help deciding on if it would be a better ride with a C6 compared to the original FMX. 5 C4 Fnt of Bell to Mount: 19. This transmission was manufactured at the Fairfax Transmission Plant, freeing up capacity at Livonia for the new C6. you can get shift kits from trans go and others but i've always used original ford sift kits, one of the obsolete ford parts places should have them if you can't find one at the dealership. The AOD shares the same drivetrain and thus the same gear ratio. Jan 10, 2016 · He says he has one from a '69 LTD that was a 429 and a C6. Cheers Rick Apr 23, 2014 · Alright, so I bought a "FMX/C6" crossmember off ebay a while back to mount my C6 and ran into a couple of issues. C4 transmissions have the switch on the transmission. C4-C6 have a different gear train (Simpson) than MX/FMX/AOD/AODE/4R70W which are known as Ravineaux. It is very likely that you have an FMX. I can't deny that a c6 is stronger due to it's brute size. C6 slip yokes are normally 31 splines, though rarely 3 splines. fine69mach1. The focus here is putting a Ford AOD into a classic Mustang and other vintage Ford applications, which are the more common swaps. If you want to install a C4, C6, FMX or E40D transmission, you will need a different flywheel. I did notice however that the swap from FMX to C4 felt substantial from a gear ratio & weight point of view, but not all that much. Jun 12, 2007 · I was told (by a pimpled face fat kid at the auto parts chain) that my 1963 t-bird came off the line with a FMX and he sold me a trans filter for what he said was an FMX. 11. The FMX was a little less efficient than a C4, but could back a big block. Dec 5, 2005 · The FMX trans is probably the most bullet proof trans Ford ever made. $101. 00:1 Reverse 2. In both cases, 2nd gear went away. C4 to my knowledge is all aluminum. Don Rush 1969 – 1970 Mercury Cougar FMX Automatic Transmission Cross Member – Used Aug 18, 2015 · My 65 Galaxie came with an FMX that had the mount broken off the tail housing. Please tell me if I'm wrong, and if I'm not then please explain Jan 6, 2009 · The FMX has a steel case with aluminum bell and tail. Accordingly, the kind of transmission fluid the C4 uses is the Type F automatic transmission fluid. Yes it does have a removeable bellhousing. 46 FMX has 1. FMX has 2. Classic Mustang Forums. This cut down on both weight and the number of transmission components Ford needed to make. Nov 26, 2014 · Sure enough, it has the C6 SeclectShift Cruise-o-matic on the report. The C6 is a heavy duty trans and was used behind the 390 and larger motors. where low is on normal trans ,its 1-2,where 2nd is its drive and where drive is its 2-3,my 67 truck had a HD MX a heavy duty version of the FMX,pans are different,the FMX is ok,but its cast iron with a removable alum bellhousing,C6 very strong,in trucks it came with both slip yoke and flange,some had cast iron tails,others have ribs running down the top,bell housing and body are The first thing you should check is the fluid level. The fmx was built in 1984 with a shift kit installed. I had to adjust the band. 99. If you go the C6 route, you will need to find a small block C6 transmission best if it is set up for a floor shifter. Jun 11, 2008 · I am not a transmission expert. Nov 28, 2007 · X for 1967 is the CRUISE-O-MATIC with shift pattern as you described. Ive heard tale that the C6 uses a lot more power for operation than the old FMX. The FMX is an old transmission design. C4, AOD use the smaller count (28?) 1970 Cougar, 3660 lbs 418W, C6, 3. a C4? Direct swap in the place of a C4? Sorry for all the questions guys. I can't find a new trans pan. Ford C6 Shift Kits Nov 6, 2005 · So if your FMX is in good shape, you could probably get by with it behind a 350-400 HP Cleveland. A C4 is even smaller. C6 and AOD may or may not have ribs. 00 1969-1970 Ford Mustang Cougar Torino FMX Transmission Shift Rod. First of all its a car, so please bear with me. Thats what Ive been told anyway. That might be something else to get off the car you get the engine towers from. The cross member interchanges between the C6 and the FMX. I have swapped a C6 into a FMX application, everything fit no problems at all. Review This Product. Pity there wasnt more aftermarket bits for the FMX. The most common transmission swap with older Fords is from a C4, C6, or FMX to an AOD or manual 5-speed. I find driver habits to be a large determining factor in a transmission's life expectancy. you may be able to find and rebuild a C6 for what it takes to rebuild the FMX. Does anyone know if an FE type C6 will directly bolt in place of the FMX. 46:1 Second 1. Sep 9, 2014 · GT Falcons from the XA onwards were fitted with the extremely heavy duty FMX transmission. There are very few parts that interchange internally. Jul 31, 2002 · Was just looking thru my FB Transmission catalog and it had a chart showing the following: C4 Overall length: 30. But if anyone has gone this route already, which I'd expect someone has, they would know already. That's the main problem with these older Borg Warner designed transmissions (FX, MX and FMX) is that aftermarket parts and upgrades are slim to non-existent, unlike the C4 and C6. Will the torque converter in the c6 - Answered by a verified Ford Mechanic We use cookies to give you the best possible experience on our website. I looked up the C6 on Wikipedia, it does not list the Ford Mustang as an application. I rebuilt an FMX for a friend and he had a heck of time getting just rebuild parts. But all in all it's been a very good trans. 00:1 Written by George Reid, author of How to Rebuild & Modify Ford C4 & C6 Automatic Transmissions LEARN MORE ABOUT THIS Sep 5, 2020 · shift pattern. The AOD also uses the small Jun 27, 2003 · \'67 transmission crossmember FMX vs. The tailshaft on the FMX is cracked, so should I try and change the tailshaft or look for a C4 or C6 (running an old 302)? Does anyone know the difference in Jul 23, 2008 · In stock form the FMX is a medium duty trans. But, if I were going to go to all the trouble of a transmission swap, I'd probably skip the C4 and C6 and look into a performance-rebuilt AOD. If you care to know, the AOD is based on the FMX design. But I never heared about different drive shaft, shifter / kick down linkage, flex plate, trans mounts. The C4 was the light duty behind 6 cyl and small block 8s (260/289/302) and when the 351s came out Ford used the FMX for them. It has it's weak points, like IIRC the second and reverse gear bands. Summit Catalog lists a C6 for the FE motor at $750 + shipping. CJ Classics Transmission Pan Chrome C6 Mustang/F-100 1967-1979. clutches, the size and number of (gears [planets], rollers, sprags/clutches, clutch packs, bands, etc. May 5, 2003 · The FMX is a sturdy tranny, but the C6 reputation is awesome. In contrast, the transmission fluid supported by the C6 is the Type FA automatic transmission May 10, 2005 · My brother had two FMX trannies die behind his 351c in his old Mach 1. It could also be a blocked transmission filter, a transmission pump problem, a bad vacuum modulator, a faulty torque converter, or an improperly adjusted transmission clutch / transmission band. Your motors are externally balanced and you will need to bolt the supplied flywheel and crank adapter together and match balance as an assembly to your present flywheel. Then pull it out, Then you can unbolt the bellhousing,torque converter and flexplate. FMX - Does anyone know if these 2 transmissions are the same length? I'm removing the FMX and installing a C6, which I've not yet acquired, on my 289 in a 66 F100 and am wondering if the driveshaft will need nodification. 1 2. Tougher than the C4 is the FMX that comes with 400PS and more easily. Mar 4, 2016 · Well, a lot to deal with here. They have an aluminum bellhousings and tailshafts, only the main center section is cast iron. Also different transmission lines was needed, and the FE C6 lines don't interchange. If the pan uses 11 bolts, the transmission is a C4 or a C5. Sep 14, 2009 · According to Phoenix Transmission Products' Greg Ducato, "The AOD is a good swap choice from a C4, C6, or FMX transmission and shares many common dimensions with them. It has a separate bellhousing like the C4 but the main case is cast iron and the C4 main case is aluminum. It is a 351C car and has an FMX transmission (Numbers Matching). My question is over the years i noticed that the C-6 and the C-4 are the more popular ones, easier to get parts for, like torque converters ,shifters, and so on. If you have one and are cost sensitive then keep it. I had both and neither of them failed on me at anytime. You can purchase a warrantied, rebuilt C6 from Jeg's for around $800. Unlike the other transmissions shown here, it has an iron case. FX and MX were all-iron I think FMX FMX Automatic Transmission Parts , Transmission Parts Selection BUSHING FRONT PUMP . If you are going to buy a 351C with a FMX, you can't go wrong with this combo. But a C4 if built properly should handle quite well too. $15. Approximately 26-1/2" with red color code. I still have the core for the FMX and I'm wondering if there is anyone that can set me straight before I unload it and learn it could have been 1966-1971 Ford Full Size Cars, 390 428 C6 Transmission Kickdown Rod. Mar 21, 2019 · The C4 has a bellhousing that is separate from the main transmission case. I am not sure on the length of the C4 compared to a C6 though. Feb 23, 2006 · if i remember right (from about 17 years ago) the fmx in my 72 mach had a perfectly rectangle shaped pan and was told the c6 has basically a pan shaped like a squared off number 6 where as the c4 has a small square pan , but i could be way off it was along time ago and im not as young as i used to be Apr 14, 2005 · 1948 - 1956 F1, F100 & Larger F-Series Trucks - FMX vs C4 vs C6 - I just figured out that my son's truck has an FMX instead of a C4 like we originally thought. I would also be changing Feb 8, 2003 · FMX is clearly stronger when you examine the internals. The FMX was unique in that it had the neutral∕safety switch in the shifter, not on the transmission. Anyone know if this will work? Obviously it depends where the motor mounts are on the 429 block vs. You did not say what year truck this was in tho. FORD 3-Speed Automatic – Muscle Car / Street Rod / Restoration The Ford C4 and C6 transmissions are two of the best performing, most durable transmission ever built. 56 detroit locker rear end) The C6 held up great. If there is too much or too little transmission fluid, this problem can occur. Mar 9, 2004 · You can actually drop an FMX from the car easier than the C-4 or 6. 56 3. Think I found one, but I need to know if the tranny is a FMX or a C4. Oct 14, 2012 · Model Specific Forums. 75 Joe Used on both 351 2V and 4V motors equipped with the C6 transmission. from $93. Parts are hard to find . You'll have to re-do the exhaust as Apr 11, 2010 · I am installing a 302 from a '79 t-bir with an fmx trans into an '82 f100 with a c6. Nov 2, 2004 · the fmx (in fmx form) was used from 66 through the late 70's or early 80's. Jump to Latest 21 - 31 of 31 Posts. I think the numbers are correct. The C4 is a 3 piece like the FMX, but all 3 pieces are aluminum. qgaxpjbb grpmxc pqfh waoqt luxnxwad fxbybe wsor qqej tpohpy vkxrd