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#1
07-06-2007, 10:37 AM
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89 TA rear end noise........help!!
I have a very hot 89 TA street car cruiser (10.90s) and installed the 2" lowering springs, Mosar 12 bolt 4:11, all adjustable bars underneath including the Spohn torque arm. The rear end whines like crazy all thru the car. I've tried 3 different gearsets with no help. I've moved the pinion angle up and down-no help. I finally put the stock 9 bolt back in with the stock torque arm. Guess what.....it's not as bad but the noise is still there!! I've spent months looking underneath and I just can't figure it out. Before I lowered it, the stock 9 bolt was super quiet. What am I missing here?? I have worried with this for a LONG time. I love the car but I hate to drive it.
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1965 TriPower GTO, 1967 GTO, 1969 GTO, 1969 Judge, 1972 GTO, 1977 Smokey and the Bandit, 1989 TA ProStreet, 1968 Firebird NHRA 10.90 racecar, 1963 Tempest S/Gas |
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#2
07-06-2007, 10:37 AM
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Also I connected the front and rear subframes and added a roll cage.
__________________
1965 TriPower GTO, 1967 GTO, 1969 GTO, 1969 Judge, 1972 GTO, 1977 Smokey and the Bandit, 1989 TA ProStreet, 1968 Firebird NHRA 10.90 racecar, 1963 Tempest S/Gas |
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#3
07-07-2007, 08:10 AM
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Bad tranny mount? Bad driveshaft? put the stock rear springs back in and see if that helps at all.
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#4
07-07-2007, 11:05 AM
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New tranny mount, driveshaft balance checked and both new u joints. I was trying to keep from swapping the springs but I may end up doing it.
__________________
1965 TriPower GTO, 1967 GTO, 1969 GTO, 1969 Judge, 1972 GTO, 1977 Smokey and the Bandit, 1989 TA ProStreet, 1968 Firebird NHRA 10.90 racecar, 1963 Tempest S/Gas |
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#5
07-08-2007, 11:46 PM
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I bet its loaded with POLY Bushings. Transfers and amplifies noise alot.
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"The Future Belongs to those who are STILL Willing to get their Hands Dirty" .. my Grandfather |
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#6
07-09-2007, 01:41 PM
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It might be the adjustments on the lower control arms...did you put the relocation brackets on the rear end when you lowered the car?
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