Suspension and Chassis Questions about your suspension? Need chassis advice?

Bad tranny mount?

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Old Oct 2, 2003 | 10:46 PM
  #1  
joshp14's Avatar
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From: Norwalk, Iowa
Bad tranny mount?

Whenever I hit the gas relatively hard on my 88, I hear this big bang and it sounds horrible. It doesn't do it off normal acceleration, only off the line with medium to hard acceleration. Do you think it's the tranny mount?
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Old Oct 2, 2003 | 10:48 PM
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BORLAZ06's Avatar
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From: San Jose, CA
from what u explained; sounds like it. take a look under your car.
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Old Oct 3, 2003 | 01:15 AM
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From: Upstate NY
Car: GTA
Engine: L98
Transmission: 700R4
Yeah, it's probably your trans mount. It's easy to change, and the mounts are cheap. Basically you have two choices, the stock rubber mount or a poly like the prothane one I just installed. Go ahead and read my post halfway down this page to read my "review" of the prothane mount.
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Old Oct 3, 2003 | 12:23 PM
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TomP's Avatar
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From: Central NJ, USA
Car: 1986 Firebird
Engine: 2.8 V6
Transmission: 700R4
Simple test- crawl under your car. Find the tailshaft of the transmission (right before the driveshaft). Try to bench-press the transmission up towards the floorboards. If you can budge it at all, the trans mount is demolished. (The trans will tilt very easily if this is so; everything will hinge on the motor mounts.)

And definately go poly. I went thru 3 trans mounts in 2 years. I bought the Energy Suspension mount, and haven't had to replace it since- that was back in '97. 3 stock trans mounts, at 7 bux each, were more then the ES mount.
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Old Oct 3, 2003 | 12:39 PM
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joshp14's Avatar
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From: Norwalk, Iowa
I'll have to check it tonight. Thanks for the responses guys.
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