How do I ID my tranny?
 

I need to identify what type of tranny I have, but I have no idea how. I know it is a three speed auto and is bolted up to a 351c 2v.

I have been told it is either a c6 or an AOD. I have no idea which if it even IS one of these.

Mike

For sure not an AOD. That's an automatic overdrive in late models. It'll be a C-4, C-6, or a FMX.

Rev

FMX
 

My trusty old Chilton's Mustang Manual says it came with an FMX in the '71 351C 2V.

Rev

Hee hee. Why dont you take a little longer to reply there Rev!

Thanks for the answer. now I am off to a Tranny shop to see how much to re-build this sucka.

Mike

It took me 10 minutes to find my Chilton's Mustang manual and another 2 minutes to look it up...............and then I don't ype really very fast either. LOL.

Rev

:)

well Kragen autoparts wants 645.00 for a re built tranny. I was expecting more... tomorrow the local tranny repair shop will be open. wonder how much itll cost to fix my current one?

Mike

Not too sure about San Clemente, but I found a small Mexican trans shop here in Houston that did my C-4 for $250 including all rebuild parts and included a new torque converter. That was carry in/carry out of course. I'd look around a little, maybe ask shops that you do business with who does their tramission rebuilds for them. That's how I found my guy. The FMX will probably be more than my C-4 for both parts and labor.

Rev