Help, rear passenger tire axel area knocks when accerlated hard
03-14-2005, 08:04 PM
#1
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Location: Panama City Florida
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Car: 1990 Chevy Camaro RS
Engine: 3.1 soon to be 305 or 350
Transmission: auto 700R4
Help, rear passenger tire axel area knocks when accerlated hard
When I hit the gas hard on my 1990 rs a loud knock or thud comes from the rear passenger tire area( only one knock or thud every time i hit it hard, no a bunch or anything just one intial knock ), i have been told maybe sway bar bushings, or shock in back , possibly even a transmission mount, also if i kick the top of the rear passenger tire it moves in some and bounces back out, any help would be appreaciated, thanks
03-14-2005, 11:12 PM
#2
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Car: 85 Trans Am
Engine: 350 (CCC QJet)
Transmission: 700R4
Axle/Gears: 3.08 9 bolt
control arm?
Remove the wheel, might make it a little easier, just a little....
Remove the wheel, might make it a little easier, just a little....
03-23-2005, 06:35 PM
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Engine: 305 TPI (LB9)
Transmission: WC T-5
It's likely that it's a busted tranny mount and it only sounds like it's coming from the rear. Either that, or having your car lowered w/o LCA brackets may do it as well.
03-24-2005, 12:49 AM
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03-24-2005, 07:51 AM
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Car: 86 T/A
Engine: HSR 355
Transmission: 700R4
Axle/Gears: 2.77 posi
I got a good deal on my first bird because the guy didn't know what to do about the noise. Ended up being tranny mount.
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03-24-2005, 10:43 AM
#8
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Car: 91 firebird TBI
Engine: Three SLow Five. LO3
Transmission: MAN 5 SPD B0RG WARNER, 77MM, 2.95
ok i have the same prob but i just had the tranny mount replaced last year maybe even shorter than that. some one told me it was the motor mounts
03-24-2005, 01:04 PM
#9
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Car: 1999 Z28
Engine: LS1
Transmission: 6 Speed
Axle/Gears: 9" 4.11 Truetrac
the mounts dont last long at all esp if you are hard on the car, so it could have ripped again. put a energy suspension poly mount in there and it will never rip again.
04-26-2005, 12:20 AM
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Car: 86 IROC / 84 TurboZ
Engine: 5.0 TPI / 2.2 turbo
Transmission: T5 / A413
I've had a similar sound come from a few different things. Panhard, control arm, and trans mount. Check the torque on the bolts too. Don't overlook the exhaust as well.
04-28-2005, 11:24 AM
#12
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Car: 1991 Z28 Convertible
Engine: 350 TPI
Transmission: 700R4
Axle/Gears: 3.23 with Eaton posi
Control arm bushing on mine. Horrible knock that I chased for a while. Just pull them laterally back and forth and check for movement.
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