~ Whats the length of a C4 trans? ~

just a quick question does anyone know the length of a C4 trans? also what was the year year these trans were used? Thanks so much

 

Can't remeber the length but they started in the mid 60s and ran through the 70s. Very very common. The only weirdo was the MII version.

 

Just did a quick check on the one in my garage. Its about 30-32" long, including the bellhousing.

 

Check out this site, got all the dim's,info


http://www.phoenixtrans.com/

 

Probably shouldn't mention it but there is a shorter one out of some pickups but they have no splined tailshaft. I had one ,just weird. Rare as hens teeth. Around 1969 pickups and vans.

 

The C-4 was then replaced with the C-5 which is the same trans--just set up for a lockup converter. Also the short tailshaft C-4 is a pan fill and the yoke bolts on the back. It is the shortest of the stock C-4's. However Flat O makes a short tailhousing setup for the C-4 that makes it like 18" long the shaft uses Chev 350-powerglide splines so you could use a Chevy yoke to make it work.
By the way the MM2 C-4 uses the smallest bellhousing so if you have a tight fit it's a good way to go.
Dutch

 

well the problem im having right now is that im using a 92 AOD out of a thunderbird and its about 2 feet and 8 inches long. the pan sits below the frame but the yoke sits at the top of the frame crossmember so the clearance is not good for the drive shaft. I also need to move the motor up and back a few inches to get the exhaust away from the master cylinder, to be able to install an oil filter without using a remote and to fit a radiator fan. but theres no way I can do this with me set up now. the angle of the motor and everything is perfect so the only way to fix this is swapping out the trans.

does anyone have any pics of there C4 installed?

 

heres some pics of my problem with the aod

 

this is a great site for parts and specs and such

bulkpart.com

 

I just replaced my c-4 with an aod.They are basically the same length (aod is about 1/4 inch longer overall , rear mount is farther back about an inch or so. Check the Pheonix Trans site above ,it has all the dims or Baumman Electronics site (google Baumman). The aod is a fatter case however so I had to do some floorboard surgery to get the rear mount high enough to minimize u-joint angle. Think twice before you give up on the aod. If you do any highway crusing at all the overdrive sure is nice.With a 3.50 rear I turn 1800 rpm at 70 mph. with the c-4 it was 3000 rpm at 70 mph.

 

I dont recognize the big round thing on the u-joint/drive shaft. What is it?

 

from what I understand its the dampiner

 

I just used my old driveshaft (normal type u-joints). Do you need the damper? If you did away with it would that help your problem?

 

no it still would be too high and the trans pan would still be below the frame