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Author Topic: Tumbling Rocks? J.B. New Member Member # 2112 posted                    Is the so called "Tumbling Rocks" noise that the rear end makes a normal sound for this car or is that something that is going to break soon? It only does it when you let off the gas as most of you probably know. Is there a special oil that I can put in it to help or do I just have to live with it, I don't have the money for new gears. Car is a 99 with 40,000 miles. -------------------- Jim - Signal_20 Posts: 18 | From: Central Florida | Registered: Sep 2003  |  IP: Logged 2002Z4CSS "Post"er Child Member # 1393 posted                    The Zexel Torsion rear differential will make some normal clunk on decel due to the worm gears moving inside.I assume you have a Zexel Torsion? -------------------- Current ride is: 2002 Brickyard 400 35th Anniversary LE convertible #22,SLP build# 0036,35th Anniversary Build #47 EMCC Member #234 www.emcamaro.org WCA Member #197582 MMCC Member #28 NEOCC Member #634 Posts: 5682 | From: Dearborn,Mi. | Registered: Feb 2002  |  IP: Logged

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