Working with my '84 GT350 once the AOD shifts into 3rd then 4th it will not unlock. Actually that's a lie it will but you absolutely have to smash the throttle for 5 or more seconds before it will down shift but will up shift and lock up almost immediately. Makes driving not all that fun.
I installed a full 2.5" exhaust and in doing so I bent the linkage to the AOD. The linkage looks right, and I've done the TV adjustment by the book using a psi gauge. Approx 3#'s at idle and 35#'s off.
Any help would be appreciated.