ok i have a 91 rs with a LO3, OE 14x3, and no muffler going into a resonated tip.....everthing else is stock. i hear a clunking noise upon moderate to hard acceleration....but not when revving the engine....my father thinks it's the motor mounts...i think it's the tranny. the other day i started the car and it stumbled and then stalled, but just before it stalled i heard the clunk again and it came(from what seemed like) from the tranny tunnel.....whats wrong? is it the tranny mount or the torque arm or what....dad isn't letting me drive it until we get it fixed so i want to find out whats going on kinda quick-like...thanks in advance.....

 

Definatly sounds like the tranny mount. You should go search through the previous threads by using the 'search' function. This same problem has been brought up a million times.


Brendan

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1987 IROC-Z L98,SuperRam,EB 6085's,LPE 219/219 Roller, Crane 1.6RR, EB TPI Base, 58mm TB, ADS 24#, AFPR, K&N, EB TES, Catco Cat, 3" Borla Cat-Back, Accel cap,rotor,distro/other crap, MSD 6AL, MSD Blaster 3, Aluminum DS, 94 Disk Rear, Adjustable Valve, Precision 3.73 Gears, Sub-Frame Connectors, Hotchkis Lower Control Arms, KYB Shocks/Struts, Suspension Techniques Lowering Springs, Polyurethan Bushings all over the place, Moog Upper/Lower Ball joints and Tie Rods ends/Idler Arm,

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i'd say trans mount also. replace it with a ES poly mount ,they're pretty much bullet proof.

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ICON Motorsports

1st & 3rd
MM Black Diamond 538 F&AM

 

its a trany mount, i would use a regular rubber mount, insted of the polyurathan mount, you risk cracking the bell housing becuse the motor can twist and the trans cant. use poly mounts on the motor

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when the green flag drops the bull$hit stops

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