HELP!!! My tranny doesn't feel right when I driving just before it shifts to the next gear it starts to vibrate and I have to let off the gas a little before it will shift what could this be??

 

Does it do this in the manual ranges too? I ask this because with your '91 you wil be at max line ina Man1 and 2 and if it goes away then I would suspect that the Forwards may be breaking loose under acceleration. If that doesn't help then get under and take a good look at all of the mounts and then also verify engine performance.

 

what do you mean by manual ranges. I just replaced the tranny mount

 

Instead of the O/D position there is the D, Man2 and Man1 positions.