Anyone swaped a c4 for an fmx?

thunderbolt · 01-09-2002, 10:37 AM

Anyone know what all needs to be changed. Is the c4 the same length with the same transmission mountiong points? What about large vs small bellhousing? My fmx is old and leaky and I think a nicely built c4 would be a much better replacement for the overweight lug in there now.

Dark Knight · 01-09-2002, 11:47 AM

depends on the year...and what it's out of...

Crazy Horse GT · 01-09-2002, 12:53 PM

everybody told me fmx's sucked ,but i had one in a 69 cougar that was indestructable i raced the ----- out of it & it just kept going ,a beefed up c-4 aint bad either , really it's up to you.

thunderbolt · 01-09-2002, 05:22 PM

It's in a 72 mustang wth a 351C. Don't really care where the c4 is sourced from. I am not particularly hard on it and it isn't giving me fits, I am just tired of it leaking from worn out shafts and bushings (not the seals, done that, shaft wobbles in housing) I figure if I am going to have to have a rebuild/replacment I would rather get rid of the weight of the fmx than rebuild it. Plus, there are more parts available for the c4.

70_Nitrous_Eate · 01-09-2002, 08:00 PM

Quote:

Originally posted by crazy horse gt
everybody told me fmx's sucked ,but i had one in a 69 cougar that was indestructable i raced the ----- out of it & it just kept going ,a beefed up c-4 aint bad either , really it's up to you.

There's nothing wrong with the FMX tranny. It's basically a C6, but with a castiron bellhousing instead of an aluminum one. You're right, very tought. But also very heavy. I also beat the crap out of my FMX and havn't had a single problem yet!

01-09-2002, 10:37 AM	#1
thunderbolt Registered Member Join Date: Oct 1998 Location: Houston, TX, USA Posts: 380	Anyone swaped a c4 for an fmx? Anyone know what all needs to be changed. Is the c4 the same length with the same transmission mountiong points? What about large vs small bellhousing? My fmx is old and leaky and I think a nicely built c4 would be a much better replacement for the overweight lug in there now.

01-09-2002, 11:47 AM	#2
Dark Knight Registered Member Join Date: Oct 1998 Location: Az Posts: 854	depends on the year...and what it's out of... __________________ 84 convt,roller 302,AFR's, performer 3.55's, underdrives BBK shorties stock cam, 1.7's 13.58@102.84 and a '68 stang .. project 8 sec street car... 557 big block + N20 :-) http://members.cox.net/darkknight302/68nwrear.jpg

01-09-2002, 12:53 PM	#3
Crazy Horse GT Registered Member Join Date: Aug 2001 Location: Sale Creek, TN. C. S. A. Posts: 4,652	everybody told me fmx's sucked ,but i had one in a 69 cougar that was indestructable i raced the ----- out of it & it just kept going ,a beefed up c-4 aint bad either , really it's up to you. __________________ 95 gt vert, lot's of stuff, it aint slow. 04 sonic blue v - six my beater 89 rs camaro iroc turbo hood, other stuff, my wifes ride 84 lx stang cammed up 289 hi po, etc 65 falcon, maybe by the year 2020. black 00gt, gone but never forgotten. R H C- member # 1 o.b.c. da prez- member # 1 if your under 40 dont ask. goodbye for now odie,r.i.p. 11-27-03

01-09-2002, 05:22 PM	#4
thunderbolt Registered Member Join Date: Oct 1998 Location: Houston, TX, USA Posts: 380	It's in a 72 mustang wth a 351C. Don't really care where the c4 is sourced from. I am not particularly hard on it and it isn't giving me fits, I am just tired of it leaking from worn out shafts and bushings (not the seals, done that, shaft wobbles in housing) I figure if I am going to have to have a rebuild/replacment I would rather get rid of the weight of the fmx than rebuild it. Plus, there are more parts available for the c4.