I'm going to rebuild the automatic C4 on my 65 fastback. Currently, it takes the transmission roughly 2 whole seconds to shift from 2nd to 3rd(top) gear when I'm driving it. I have to rev it rather hard before the 3rd kicks in. Will a simple rebuild help in a cleaner transition from 2nd to 3rd or is there an adjustment I need to do in addition?

I'm a newbie so any advice would be much appreciated.

 

I've never had any success with rebuilding an auto trans. I had my C4 rebuild by a shop twice and it never lasted more than a couple years. Each rebuild cost as much as I could have bought a new trans with warranty for. A new trans wasn't nearly as much as I thought it would have been.

 

Throughout the forums and youtube videos, people have been saying that the C4 is one of the easiest to rebuild compared to other transmissions. I rebuilt my carb about a month ago, which is much smaller but just as intricate in the number of parts. I would consider getting a new transmission but everything on this 65 fastback is original(except the rear bumper and paint).