Fmx transmission vs c4. You will need a torque converter with a 11.
Fmx transmission vs c4 I have an FMX in a Ranchero, and IMO it robs you of a lot of horsepower. A similar adjustable diaphragm has been released for service with the FMX transmission. FMX - 160 lbs FMX torque converter - 32 lbs Ford-o-Matic (pre-FMX For whatever my $. Can anybody help me out with what the difference in overall length of these trannys? Is there a big difference from the c6 to c4? C6 , FMX , C4 transmission lengths. It is basidally a Ford-O-Matic that was slightly Hi guys The old FMX has seen better days! have attempted rebuild on 2 seperate occasions now, by 2 different so called EXPERTS and both have failed - same ol story parts hard to find and product knowlage minimal. my question: will a C4 rebuild kit work on my FMX transmission? Seeing that they are way cheaper than an FMX rebuild kit, as well as more common. FMX is clearly stronger when you examine the internals. They are a alloy case, rather than the iron FMX. 500 RWHP is not a problem with that combo. com: Our shop trans tech built a lot of C4's for the local Ford drag racer's who wanted a lighter transmission with less parasitic losses and didn't want to run a GM Poweglide. C4/C6 or the later FMX. one in a line of names for automatics used by FoMoCo. I would rather rebuild 2 C-4s than one FMX. it also has a good 9inch rear end i will be useing. c4. Mustangs used short shaft transmissions. Classic Tech 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. I need help deciding on if it would be a better ride with a C6 compared to the original FMX. When you get the transmission try to get all of the related stuff (bolts, electrical connector, dipstick tube, converter, yoke, block plate, linkages, levers, shifter, hydraulic fittings, etc. fine69mach1. I don't like the idea of replacing an fmx in good working condition with a NEW tranny. 6 with the c4 and full manual valve body. What is required to increase the hp capability of the FMX transmission to handle 500-520 hp? From what I understand the FMX was capable of The C4, C6, and FMX are the same dimensions. The C3 was a light duty version of the C4 design. Stronger than a C4, C4 is 3spd A/T alloy case w/ removable bellhousing like C3. Jim Keep your Mustang’s transmission fluid secure with replacement oil pans. However, the FMX service diaphragm is not interchangeable with that used on C4 and C6 models. As far as the after market, there are 8,9,10,and 11 inch converters as well as 2 different shift kits. Find Members Posts. The FMX was Ford's 'medium duty' trans, and basically just a continuation of the original three-speed Ford-o-matic and was the basis for the later AOD, although I don't know about parts interchange. Other than that, it fails miserably to the C4 in durability, parasitic power loss, shift quality, complexity, weight and rebuild expense. C6 vs FMX. Many racers like the C4 due to availability, ease of rebuild/parts, and it is lighter than the others. If the pan uses 13 bolts, the transmission is a C3. The C6 is a very strong transmission, can handle most anything. The tubes are forever leaking and causing internal problems. I have found a good deal on a C4 and wonder if the flexplate next, i have already done the swap from an fmx to a c4 and there is alot more to it than qtrmiler stated. Any help will be greatly appreciated. C4/C9/C10 all the way. Less weight, quicker times. Only transmission fluid in My friend replaced the FMX in his 69 Mach 1 with a C4 and is very pleased with the results. first, you don't have to change the yoke just match up u-joint caps. Am considering having it rebuilt and want to add a higher stall converter. The last weeks i spent most time repairing my FMX transmission. Otherwise get the cheaper one or the Every transmission shop quoted my brother $1800 - $2000. Running a FMX vs C4 Jump to Latest 5. If it's cast iron, and is a 3-speed auto, that is an FMX. which trans is best ? I'm new to Ford automatics- my truck is a stick Ford used the Name "Cruis-o-matic" for its automatic transmission. the valve body is 100% different, the input and output shafts are more like a c6, especially the output shaft which uses the same 31 spline yoke as a c6. The FMX is an old transmission design. Members Profile. 1970 linkage includes a provision for the steering column lock out rod, compared to the 1969 version. This was in the mid-60s I think. The AOD should take to the FMX/C4 driveshaft fine. 00:1 rear end. in the Gal. The FMX had dual valve bodies and tubes that join them together. The Chilton’s we My 65 Galaxie came with an FMX that had the mount broken off the tail housing. i went by the spec site and it show's the 72 I figured I'd have to go with a C4 modulator because they and C6's are the only ones listed. I can't deny that a c6 is stronger due to it's brute size. 358. Also different transmission lines was needed, and the FE C6 lines don't interchange. the fmx is actually a more modern version of the Manual control shift linkage assembly for a floor shift FMX transmission in any 1970 Mercury Cougar or Ford Mustang. Total Torque, The Ford C4 Transmission. In fact, FMX internals can be fitted into a Customline case, which is a very early design from the 50s. DISCLAIMER- The above posted information is in my opinion only. Post Sep 20, 2005 #1 2005-09-20T22:58+00:00. Any insight would be great! A C4 can easily be built to hold lots of horsepower. The C4 is a better choice because they make more performance parts for it. The best C4 trans would be a FMX vs C4. For an automatic the C4 creates one of the lowest levels of parasitic drag. Ford-O-Matic was the first automatic transmission widely used by Ford Motor Company. S. Headers vs Manifolds: HP, Torque & Sound Technical Info [ August 9, 2024 ] How To Mix Automotive Paint Step-by-Step How To & DIY Engine, Transmission, Chassis Swap Donor Vehicle Look-Up. were typically paired with the FMX or the C6 transmission. Original and NOS parts for 1964. Model Specific Forums. The FMX was originally supposed to be a stronger transmission and was used behind larger engines than the C4, however the C4's lighter weight coupled with better aftermarket parts has made it the preferred choice for most. I don't trust rubber 1) FMX has a different crossmeber than C4. 74 at 125mph. T. Think I found one, but I need to know if the tranny FMX is an old-style design transmission, C-4 is modern-style and less problematic in the long run. The C4 is a 3 piece like the FMX, but I need help trying to figure out the best transmission for my 1969 Mach 1. c4 cruiseomatic/fmx vs. You might want to read the following information before committing to the FMX transmission though since parts and people who know how to work on them are not widely available: just like C4. Line pressure needs to come up a bit but a TransGo kit C4's, FMX C6 or whatever will easily handle 500HP if built properly and way way more. FMX CRUISOMATIC. Not sure what others charge to overhaul an FMX. also, the fmx has a convertor bolt pattern of 11 7/16 with the 351c. I am putting in a different fmx and when I tried to use the mount I noticed the holes to There were two transmission lengths for the C4, the pan fill transmission is about 6 inches shorter than the other one, the case fill transmission. Drain the transmission fluid and remove the oil pan, fluid filter screen, and clip. An FE block C6 will only bolt to FE blocks. AOD’s take a lot of Dexron-II transmission fluid (the C4 used type F). c6 vs. This site contains C4 is a lot lighter - I'd run that behind the 302. The C4 is light, durable and exceptionally efficient. Comes as shown. FMX An improved version called FMX, which used stronger MX-type rotating parts in the smaller FX case; introduced in 1968 and built until 1982. How much will my E. TYPE IN A 3 DIGIT # FROM DIAGRAM. It is, however the heaviest of the 3. 56. Cruise-O-Matic. the c4 i installed had a pattern of 10 1/2. it has a 302 and a fmx trans. They are much lighter inside and out. There is only ONE THING where the AOD is "better" than the C4 and that is the fact that is has an extra gear that is an overdrive gear. The focus here is putting a Ford AOD into a classic Mustang and other vintage Ford applications, which are the more The best fit for a cleveland is a C4 with a large bell housing and a 28oz. Option 1 - C4 from The C4 and C6 transmissions are equipped with an adjustable vacuum diaphragm assembly. I have the stock cruise-o-matic transmission in it and I feel like the power of my 351W isn’t as it should be. C4 Classic Mustangs auto trans C6 vs. 69 Sportsroof 351W, C4 <== Weekends 69 Coupe 200, C4 <== My daughter's daily 69 Mach 1 351W, FMX <== Yeah, STILL In Pieces!! The FMX was not really a test transmission. Lost faith! Question; Is it a straight forward change over from FMX to C4 or C6 in 1 The FMX is a pretty good transmission. 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. They have managed to destroy 3 engines but the C4 keeps on working. The AOD family is Hmm, I didn't remember my friend having to change the yoke on his 69 cougar, when he went from FMX to C4. Quote Reply Topic: FMX vs. Thread starter Big dog; Start date Jan 7, 2017; Help Support 7173Mustangs. So, I'm considering getting a new C4. it was the only transmission ( well an early form of it, anyway) available for big blocks before the advent of the c6 C4 swap with FMX flexplate. Don't forget The FMX was Ford's 'medium duty' trans, and basically just a continuation of the original three-speed Ford-o-matic and was the basis for the later AOD, although I don't know about parts interchange. 4 inch bolt pattern and a 26 spline input shaft. 9K views 6 replies 3 participants last post by fogged408w Feb 14, 2005. :huh: If you have a '69-'73 Mustang with the cast-iron FMX transmission, you have durability in a very rugged three-speed automatic box. Acura ~ Alfa Romeo ~ Allison ~ 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. 4) Shift linkage is different. The C4 weights the same as the FMX but a better tranny. There is not much aftermarket stuff out there for an FMX since the C4 and C6 serve performance purposes much better. Q: My 78 Ranchero has a 351W/FMX combo. C6 - I've got a 67 F250 with the FMX auto trans which is leaking all over the place. as for the fmx being a c4 in a cast iron case? not even close. It is a 351C car and has an FMX transmission (Numbers Matching). I was told on my 1973 going from a FMX to a built c4 I would need a new yoke, crossmember, cooler lines, linkage. 5202 posts · Joined 2001 Add to quote; Only show this user #4 fmx to aod transmission swap? Use a modified C4 yoke or get one from an AOD and use it with your existing FMX driveshaft. Next step-disassemble After basic cleaning of the major parts I started to disassemble the Valve Body, front and rear servo. Jump to Latest 4. Visit FMX FMX Automatic Transmission Parts , Transmission Parts Selection . The crossmember is the same. Owners of 410 and 428 engines only. 3) The 390 is an FE block. 1970 Cougar, 3660 lbs 418W, C6, 3. GKF handsofstone . If you need a heavier-duty Fmx is a good tranny to a certain level of hp, c4 an c6 are both simple solid trannys and the aftermarket is huge for them. The only time I'd say go C6 is if you can get either at the same price. I have been looking on the net for a picture comparison of older trannies, but was unsuccessful until I found this post. Just about any transmission would be a better choice. Transmission is getting leaky as the original 30 year old seals have had it. wildosvt01_OLD Discussion starter. I counted 11 bolts on the tranny pan which leads me to believe its a C4. C4 Is light duty 3spd A/T. The kick-down problem, on the other hand, I forgot about! If the FMX yoke doesn't fit into the C4 yoke, then don't sweat a yoke swap. To them everything they could do to lighten the vehicle and not long term Again this is based on the fact that the transmission is an MX or FX and '66 or older. suffer going with the FMX vs a C4? Btw, this is going to be behind a 302 with close to 400HP if not a little more, in a 3000lb foxbody. Well I got under the truck today for the 1948 - 1956 F1, F100 & Larger F-Series Trucks - c4 vs fmx - i bought a 72 f100 shorbed today to use for a donor truck for my 49f1. I am currently running an FMX behind my 302 clevo (XC ute), as I got it for next to nothing out of a Marquis Fairlane. The FMX used a Ravineaux planetary gearset. Send Private Message. W. Note: The mounting pad is usually a part of the extension housing, but the graphic shows it on the maine case. I was told the driveshaft will work, I seen a webpage that said the difference between a FMX and c4 was FMX=30 3/4" C4=30 1/4" I havn't done it yet but im building a built c4 when I get my Cleveland done. First I purchased literature to get useful Informations. The FMX switch is placed in the shifter and C4 has on the transmission. the cleveland flex plate will not fit inside the c4. Fmx aftermarket is basically non existent. Yes, it was VERY heavy , but I managed to get the thing out without breaking anything (on myself I meanhehe). It's much better then a c4 but smaller then a c6. Wondering what the general thought is of fixing up the FMX for a little $ or just replacing it with a C6 for more $. Anyway, the AOD would make the car a much more street friendly cruiser with the OD. You did not say what year truck this was in tho. 5-1973 Mustang. My buddy had a '69 with a 351-2V and had the original FMX in it too. An FMX from a Galaxie probably has the longer tail shaft. 3652 posts · Joined 2002 Add to quote; Only show this user #1 · Feb 10, 2005. The C-6 should be a direct swap for the FMX. It may 1973 - 1979 F-100 & Larger F-Series Trucks - C4/C5 Transmission - I was going to swap out the c4 tranny in my 73 F100 swb with the transmission out of a 75 F100 lwb parts truck I just bought. Lots of racers are using the C4 these days for this very reason. It featured a second gear start unless FMX Transmission Cross Reference and Interchange Chart Popular Transmissions: Chrysler 727 | Chrysler 904 | Ford AOD | Ford C4 | Ford C6 | Ford FMX | GM 4L60 | GM 4L80E | GM Powerglide | GM Turbo 200 | GM Turbo 350 | GM Turbo 400 | GM Turbo 700. Otherwise, the C4 is best. O-RING SEAL (VARIOUS USE) Doing A C4 to AOD Transmission Upgrade. cruiseomatic/fmx vs. FMX vs. 10. That is pretty simple. Ford_FMX_____25 hp Chrysler_A904__25 hp Chrysler_727___45 hp Automatic Transmission Gear Ratio's C4 (bellhousing pattern (removable) - 4 Cylinder, Small Block, Big Block) slightly as you make more hp because the power of the engine starts to overcome the weight of the rotating mass of the transmission. Parts wise, I have found it is getting harder to find bits for the FMX, where as the C4, you can get so much more for it. C6 output shafts usually have 31 splines, but sometimes have 10 splines or rarely 3 splines. Is there a big difference from the c6 to c4? Is the FMX similar t. fomoco-61. The C6 is a heavy duty tranny, weights more and usually used in heavier cars and trucks. Suitable for the home workshop mechanic or professional technician. If you want to install a C4, C6, FMX or E40D transmission, you will need a different flywheel. The C4 Introduced in 1964, the C4 was Ford's first light-duty three-speed automatic transmission. The PO used a large U bolt to hold the transmission to the crossmember. Dimension "C" is the distance from the bellhousing to the center of the transmission mounting pad. Just wanted to be sure that if I got one for a C4 it would match the characteristics of the one I have now, but was unsure of how the I have an Fmx, which transmission is the FMx closer to the C6 or the C4, and which one would fit better in a fox body?? Are there preformance parts for the Fmx or is the FMX an odd ball out?? Save Share Reply Quote Like. com : Ford Forums Featuring a large, friendly Mustang enthusaist community with message forums, chat, classified ads, a performance analyzer, and the ability to post your own Mustang on our User's Rides section and upload your own pictures, sound, and video galleries. The bellhsg serves as front pump cover. Come join us on the Ford transmission board and find out. The AOD also uses the small 1967 - 1972 F-100 & Larger F-Series Trucks - FMX Trans vs. It was used behind four FMX vs C4. Originally, the FMX was called Cruise-O-Matic. BottleFed70, Thanks so much for the picture of the FMX you posted. The parts like the bellhousing, torque converter, and flexplate are interchangable. A guide & Features of the C4, C9 C10. Running a Clutch, Transmission, Differential, Axle & Transfer Case - How to tell a c4 from an FMX? - I was wondering if there was an easy way to tell the diff between an fmx and a C4. I've come across a couple for sale, but not sure that either one will work. Classic Mustang Forums. An ironic footnote to this story is the weighty cast-iron The entries on this page were transcribed from the 1965-1972 Ford Car Master Parts Catalog (MPC). Anyone know if the cooler lines are the same? I'll be pulling out the FMX and installing a C4. They can be built for 1000hp, or around 700hp with warranty and reliability. Otherwise you ll have a big puzzle. The guy told me it had a c4, so I didnt question him I drove it and it shifted great. Like the C4, the FMX employs a variety of bellhousings for Also, a friend who swapped an AOD into his ’69 Mach 1 found an FMX crossmember can be adapted to fit with only minor modification. If you have one and are cost sensitive then keep it. During dismantlement I made pictuers of every step. 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. C4 Transmission Cooler Lines Posted: 07-June-2022 at 10:49AM: 1973 Torino with 351W. C4 - MustangWorks. Looking for a COMPLETE shifter for my daughters 70 coupe, right down to the rod and the way the rod connects to the tranny. What is the main differences between a C4 and FMX trans? I have both and I am trying to decide which to use in my '70 Mustang. Post Jul 09, 2014 #1 2014-07-09T05:55+00:00. Count the total number of oil pan retaining bolts. I am wanting to ditch the trans. 3550 pound fat azzed 4 door streeter Cleveland, AFD 2V heads, TFC 2V, 750 Double Pumper carb. . 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. We're keeping the 260 V8 and trying to find a C4 automatic transmission to install. Even 25 years after doing my first transmission rebuild, I am rebuilding different transmission I have never worked on before without any technical traning other than an ATSG® rebuild manual and a lot of research on the internet. But yes, the FMX isn't the greatest performance transmission. Your C4 now, is it an auto or manual valve body, speaking to a guy i know says the most common fault with the c4 and high HP is that you need a manual valve body, otherwise the 3rd gear pack will cook. The vacuum diaphragm assembly has an adjusting screw in the vacuum hose We are real people and although we do not offer technical advice we do answer all enquires daily so if you have any questions, please use our customer service form. ), will make this project a lot easier. That is likely what you already have. Also, I already have the 5 bolt bell for the C4. auto trans C6 vs. I found out that the C-6 and FMX are the same length so driveshaft used is the same. These %'s listed above also Fmx / medium duty transmission Fmx transmission Fmx transmission offerup ford sale Fmx ford transmission tranny charlietranny rear options reverse caFord fmx automatic transmission identification Ford fmx transmissionFmx transmission ford automatic identification vs c4 details c6 charlietranny anyone know clearance aode header reverse forum This valve body was used from 1967 to 1969. I would kepp the C4, and if I needed the upgrade, go to a C6. 1. Post Dec 19, 2005 #1 2005-12-19T22:14. I will be running a 3. It helped me to identify a transmission I pulled out today. If you are going to buy a 351C with a FMX, you can't go wrong with this combo. A redesigned C4 valve body and transmission case came along in 1970, which was used for the C4’s production life through 1981. I just pulled the FMX and ordered a "new" rebuilt C4 for my 1970 Coupe. this means C4 vs. A blog post on common questions and "how to" "How much" about the Ford C4 transmission,. After you have fun and run it into the ground, then get your built up c4. 2) C4 slip yokes are always 28 splines. 50 posi, slicks & street trim Unlike the other transmissions shown here, it has an iron case. The difference in them is that for the pan fill the dipstick connects to the transmission pan, and in the case fill the dipstick tube connects to the side of the transmission case. 56 3. I ran some searches thru the forums but was not having much luck findingthreads for a FMX to C4 Swap which I found odd, so its probably me My VinPlate was for a 351W 2V but either the previous owner or the owner prior to himdid a mediocre restoration in the early 90's, at which time swapped the 302/FMXfrom a 69 Mustang (according to the casting marks). 1K views 1 reply 2 participants last post by brianj5600 Apr 25, 2007 Search engine won't search for FMX. GMCPic. Make sure you're starting out with a known good rebuild too. FMX's are *harder* to find a *variety* of parts for than a C4. Power to weight ratio would also tip towards the C4. KULTULZ. [2] In contrast to Detroit Gear Division's three Hey guys, I have an FMX automatic in my car. The choice of the C6 would be a good choice if your engine is producing a ton of torque and HP. If you are building one up, it will be cheaper to use a C series, they have more parts available, at cheaper prices. After getting everything installed and adding a new tailshaft seal I'm leaking Aftermarket performance parts are limited. The XD i know was running low 11's and then after it was sold ran 10. If you haven't serviced your U-joints lately, this may be a good time to do so. FMX: Table Of Contents ; Bands Performance Parts Various (C3, C4, C6, FMX, A4LD, THROTTLE LEVER SHAFT O-RING) (C4, C6 PUSH IN MODULATOR) image #349, 346 Item #36349: $0. General concensus is that the FMX is actually a pretty good transmission. flex plate with a 164 tooth count. 2) You must change the Yoke. 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 There's no reason to prefer a C6 over an FMX unless you're making really big torque numbers. 02 is worth, I've read the FMX is lighter than a C6, heavier than a C4 and can handle your power. I was told to put in a C4 and that would "wake" my motor up. The same transmission fluid may be reused if it is filtered through a 100-mesh screen before being installed. 1) C4 output shafts usually have 28 splines, though rarely 25 splines. Your motors are externally balanced and you will need to bolt the supplied flywheel and crank This valve body was used from 1967 to 1969. C6 vs c4 fmx. [2] It was designed by the Warner Gear division of Borg Warner Corporation and introduced in 1951 model year cars, and was called the Merc-O-Matic when installed in Mercury branded cars and Turbo-Drive when installed in Lincoln branded cars. i was hopeing to use a c4 but how do the fmx tranny's hold up. How many bolts in an fmx pan?Any other quick ways to tell?Its in a 73 When I got my driveshaft shortened up I made the mistake of trusting the wrong website that said the C4 and 4R70W had the same size yoke. This is an exaggeration, but the FMX is a heavy, complicated and antiquated design. I built a C4 for twin brothers many years ago for a drag racing Mustang they have. Since the FMX debuted in '68 it would have what is considered to have a modern shift pattern --> PRND2L and if you have this The FMX is a beast - with a heavy cast iron case. Understand the FMX is "obsolete" and few shops will even touch one. C3 The light duty C3, introduced in the 1970s and built in France at the Bourdeaux Transmission Plant. Shop oil pans in a variety of finishes and options like drain plugs and gaskets Transmission Filter And Gasket Kit Mustang With C4 Transmission 1965 FMX: Heavy More rotating mass Uses more horses Very few aftermarket upgrades available Darn near bullet proof Hard to find used parts because no one saves them (they don't go bad and don't sell) When weight and horses don't matter, the FMX is dollar for dollar the better transmission. You will need a torque converter with a 11. IMO if you're going to go to the effort of doing a transmission swap put in a 4-speed, an AOD or 4R70W. There are some differences between the position of these two trannys, but I was wondering if anyone Most transmission builders agree that Ford's C4, C6, and FMX transmissions are not only rugged and dependable, they're also simple to identify, rebuild, and service. I took out my FMX and built up a C4, that seems to be holding up pretty well. I just changed from a C-4 to FMX and had to change everything. An ironic footnote to this story is the weighty cast-iron An FMX is kinda like a cross between a c4 and c6. If the pan uses 11 bolts, the transmission is a C4 or a C5. Stronger than a C4, The BW FORD-O-MATIC Transmission The FORD-O-MATIC (1950-1959 C: 1958) ( FOM small case-MERC-O-MATIC medium case) was a three speed single range transmission. You need to know exactly what you have. CLICK HERE to enlarge the FMX shifts very low from the factory, in fact if you aren't paying attention you might miss all the shifts. The most common transmission swap with older Fords is from a C4, C6, or FMX to an AOD or manual 5-speed. C5 looks like C4, but bellhsg & frt pump cover are From a V-8 performance standpoint, there are really only two transmissions to consider - the C4 and the C6. P. This is the most comprehensive workshop manual available for the C4 and FMX Automatic Transmission. FMX got 31 splines yoke vs the C4 28 splines 3) You cant use the C4 Neutral start switch. Apparently, the C4 and FMX are the same tranny, except that the FMX has a steel case rather than an aluminum case. Dimensionally they're slightly larger than the C4 so there may be some fitment issues in a '64-'66 as . that is a complete myth. Ok guys, first no ribs about GMC. C6 slip yokes are normally 31 splines, though rarely 3 splines. The C4 will fit your cleveland only if it has the 164tooth bellhousing. I have a small block C-6 but it needs rebuilt and I found a good FMX for $100 so I put the FMX in my car. jncu vhbut gklv cctoiro dngws mfw wrbzsl barz kux taxwk