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Thread Starter
Teching In
Joined: Dec 2011
Posts: 12
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? ok guys i have a ? might sound kind of dumb and i feel kind of dumb asking but i might as well. i have a 99 trans am with bolt ons and a 4l60e with 3600 stall.....when i got car back from trans shop it had a vibration...ran good shifted great just had a vibration.....well i finally found out after research that my vibration was from the poly trans mount. so i switched to a stock rubber mount....after that no more vibration but this is the part i feel dumb asking about, the car feels slower to me===as if when u hit WOT it doesn't seem to down shift as before and doesn't seem to pull as hard. the reason i feel dumb asking is cuz i don't see how a minor change like that could affect the car, but thats all it could be i drove it 20 min before i swapped it and it ran fine changed and it now its how i described. is that normal that maybe the stock rubber flexes so much it causes the car to drive differently if not ill have to check but any info would help thanks
