Transmission shake/shutter

oosmytoo

Founding Member
Jun 21, 2002
530
0
16
Portland - Oregon
In need of expertise! So the other day I was doing a hard pull from first to second (basically a first through second gear burnout). After letting of, which at first I thought I had blown another head gasket. Got the car home checked the oil coolant etc. and everything looks fine. (Car free revs fine in park/neutral) but when in 1st or reverse it has a shake/shutter through about 3000rpms then cleans out and runs fine. I cannot power brake it now and burn out, which was no problem before. I'm determined it has something to do with the transmission possibly the converter or the transbrake. Also I put the car on jackstands and rolled through 1st,2nd,3rd and feels fine.

Engine is a 331stroker with trick flow kit, and s trim blower at 12psi
Transmission is a FB Performane 4stb-e with 3500 stall (basically a AODE with a manual valve body)
 
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