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maroman88
10-06-2008, 06:48 PM
i think i blew sumthin in the rear on the 95Z. under any kind of acceleration other than coasting, when the trans shifts into 2nd theres a massive thump from the rear end.... the harder u accelerate, the harder the thump. guess its goin to the shop tomarrow, gotta break out the 88 for daily driver duty for a while
BonzoHansen
10-06-2008, 06:51 PM
Maybe the trans mount?
maroman88
10-06-2008, 07:36 PM
Maybe the trans mount?

nope... just had the trans done a few months ago.... i wish it was that easy, and i had replaced that just prior to the trans going
sweetbmxrider
10-06-2008, 07:38 PM
ya, take the trans mount off and check it. you can't really see it on the car. i replaced mine and broke it within a week. just been driving it like that for now. eyeball your rear suspension though. maybe get a friend and power brake it?
LTb1ow
10-06-2008, 08:37 PM
Your spare tire come loose?
KirkEvil
10-06-2008, 09:59 PM
I had the same symptoms in my old 95 firebird where a constant thumping would come from the rear under acceleration. Sounded like it was coming from right underneath the rear seats when you were inside the car. Turned out that I overloaded the suspension with too many people in the back seats. Do any heavy hauling lately?
NJ Torque
10-06-2008, 10:03 PM
Torque arm bushing?
Tru2Chevy
10-06-2008, 10:46 PM
I would check the tranny mount too. It's a 2 minute check, just get under the car and push up on the back of the trans. If the mount is busted enough to let the trans whack the floor, you should be able to push the trans up enough to see that the mount is toast.

It may not be it, but if it is, it'll save you the hassle of taking it to the shop.

- Justin
alamantia
10-07-2008, 10:46 AM
Broken spider gears
Anti_Rice_Guy
10-07-2008, 12:08 PM
That happened when ours broke the trans mount. It only happened above 2300 rpm, and only on 1-2 shift.
ta350
10-07-2008, 08:28 PM
+1 on tranny mount.... broke 4 factory ones before going to energy suspension mount FTW!
maroman88
10-08-2008, 12:23 AM
yeppp was the trans mount AGAIN lol
LTb1ow
10-17-2008, 10:09 PM
haa
BonzoHansen
10-19-2008, 06:51 PM
I win! I said it first!

My 82 T/A blew a trans mount every spring.
ar0ck
10-19-2008, 08:59 PM
I've had the trans mount bolt back out before causing the similar sound.