I had the transmission rebuilt as soon as I got my car about a year ago. Bought it with bad tranny. After rebuild, I never did like how it shifted from 3rd to 4th. Today, mrs comes home, says its really holding out longer then usual.

Is their anything that a decent DIY-selfer, but un-knowledgable in trannys person can do to make it shift sooner?

Btw, this is 1991 v6

Thanks