import slayer

Which servo came factory on the C-4 trannys? I have a '78 C-4(pan fill) and I want to do add a manual valve body and upgrade to either an "H" or "R" servo. I was wondering which one it has already.
Also, where is a good place to buy an upgrade servo?
Which one would be better...the H or the R servo?

uedlose

the front servo is the one you speak of.look on the out side cover it has a letter on a A or R or H there others also that is how you know what servo you have.and I use the H servo.for the c-4s but if you cant find one all the after market trans.race guys seem to be making servos now.

import slayer

Thanks...I prolly have the A servo because I always hear of guys switching to the H or R servo unless different year C-4's came with different servos