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Rear end moves

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Old 01-01-2011, 11:59 PM
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Default Rear end moves

When I push the gas in maybe 1/4 throttle, the rear end moves... the right side feels like it moves forward and the car steers off to the left. I peaked under the car with my cell phone and the LCAs are in the same holes and everything else seems to be bolted in good. Is this just maybe a wavetrac thing? Kinda stumped here.
Old 01-02-2011, 12:40 AM
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Originally Posted by BlkBird2000
When I push the gas in maybe 1/4 throttle, the rear end moves... the right side feels like it moves forward and the car steers off to the left. I peaked under the car with my cell phone and the LCAs are in the same holes and everything else seems to be bolted in good. Is this just maybe a wavetrac thing? Kinda stumped here.
check to see if any of the bushings are wore out on anything and check the torque arm connection at the tranny maybe the bolt came out or came loose
Old 01-02-2011, 12:46 AM
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Check the panhard bar. My car felt the same want and mine was cracked.
Old 01-02-2011, 01:11 AM
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I'll crawl under there tomorrow and check it all that out. Thanks.
Old 01-02-2011, 10:12 AM
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What diff unit is in the rear end? I've driven cars with Detroit Lockers that acted about the same as what you're describing.
Old 01-02-2011, 02:44 PM
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Wavetrac.
Old 01-02-2011, 03:52 PM
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The powdercoat on the panhard bar has some wrinkles in it. Not sure if that means it's cracked or not. I don't see any real cracks or nothing. I forgot how flexible these things are but I can bend mine kinda easy. Everything else checks out. Possibly a bad wheel bearing? The passenger side is leaking. I suppose I'll pull the axle out and take a look at it while I figure out a way to get to stop leaking. Maybe silicone?

Maybe I just got used to the spool making me go straight everywhere I go but my 10 bolt never took me to one side or the other so I don't know.
Old 01-03-2011, 03:50 PM
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Bump.
Old 01-10-2011, 01:27 AM
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Today I noticed that when I put the car in reverse and start to back it up, you hear some kind of small noise and the right (passenger) side of the car seems to lift up. You can tell while looking in the rear view that it comes up. Think it's something to do with the differential? Or would this still be the cause of a bad LCA bushing?

All I did was move the car. I haven't had the time or schedule to really get under there and check everything. Snow is all over and we are expecting another 3-6" today.
Old 01-10-2011, 08:06 AM
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Very possible it could be a wavetrac issue but I would hope not since that thing is almost a grand. Start with all simple and free test to eliminate the easy stuff. LCA busings, tranny mount, TA bolts tightened etc.. Also pm Bob@Brute Speed and see if he has had any customers with similar issues. I really think based off what you have said so far that it is one of two things. 1. Diff 2. LCA bushings

FYI - Your post #9, if you mean a "pop" noise coming from the right side and the car seems to lift up? This is very similar to how my car reacted when I broke my Tru-Track then of course replaced it with a spool.
Old 01-10-2011, 05:05 PM
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Mine is brand new. It has less than 50 miles on it. It drives great under normal acceleration. It doesn't matter how easy you go in reverse though. I'll check the car all out and get my new wheels, tires, panhard bar, and LCAs on before I pull the rear end.

I bought it from Bob at brute speed. I'm sure a bunch of sponsors have checked this thread but don't have any ideas so they did not post.



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