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Rear-end info

This is a discussion on Rear-end info within the Drivetrain forums, part of the LSx Technical Help Section category; Hey everyone Just found out the funny sound coming from my 2001 Ws6 was the rear-end and it looks like ...

  1. #1
    Member War Theory's Avatar
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    Question Rear-end info

    Hey everyone

    Just found out the funny sound coming from my 2001 Ws6 was the rear-end and it looks like it is blown. This sucks because when I get the car 2 years ago I had this funny sound and was told it was the rotors. I parked it for almost a year and just took it out and the sound is worst. So I need rebuild my rear so do I have a 10 bolt or 12 bolt in the rear? Also what type of gear should I go with since I am having the work done? I heard the 3.73 would really work my motor when I go over 70 or should I go with a 3.55. help

  2. #2
    Auto Painter RyanJM's Avatar
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    I know what you mean I though it was the larger tires making noise but when I hit 135 the rear gave out and the noise got 10 times worse. Chewed a few gears too. I had mine rebuilt but it's starting to make noise again. I do beat on my car a bit though. t's a toy and for me that's all it's for. If you plan on adding more power I'd get a better axle. You should have a 10bolt unless it was changed. I've heard a 3.73 is ok in an auto. I was planning on using it but I am changing my car to a 6spd and going with a 4.10. Oh and the 3.42 is a little easier on the mpg but still better than stock.
    1998 Trans Am 85k miles.
    Bolt ons, MS3 113LSA cam, Circle D Stall, Tune, Modified WS6 style hood, Full Suspension, 6000k HID's, Clear Side Markers w/ Leds, Led 3rd Brake Light and 18" AR Staggered Killer Wheels w/ BFG KDW NT's.- Weekend Toy/DD
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  3. #3
    Member War Theory's Avatar
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    Hey RyanJM thanks for the help, after your rebuild your end was back to par how long it take you to blow it again? I am looking at spend over a G for the rebuild and the gear of my choice, I would hate to have the work done just to have to redo it in 2 or 3 years.

  4. #4
    Member NavdeepWS6's Avatar
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    i had a whine coming from my rear end and had changed the bearings and gears to 3.73 cost 750$ and then i broke it during a race so now im just waiting for a new rear because to rebuild it cost aroudn 1500 and a new 12bolt is 3k with install

  5. #5
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    what kind of noise did your guys rear end make? because mine has almost a grinding sound comming from it or like something rubbing?

  6. #6
    Member War Theory's Avatar
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    Hey guys just got back my WS6 today the rear was shot bearings went bad so I had some stuff replaced cost me 1023.26 plus I had new rear brakes put on and rear rotors shaved. it will cost me $410 (with gear cost) to change to a 3.73 is it worth it?

  7. #7
    2 SS's are better than 1 Jays00ss's Avatar
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    NOpe for $1k more you could have bought a brand new 9" and never had to worry about it again. Word of thumb when it it comes to a 10 bolt. replace DO NOT re build.
    2000 SS Camaro Heads, Large cam, Fast 90, 9"w/430's and locker, yada yada yada... you get the picture

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  8. #8
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    If you can do the work yourself and you want a gear change you can stick with the 10 bolt. Like Jay said, for a grand, go 9".

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