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04-13-2004, 08:44 PM
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#1 |
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Registered User
Join Date: Feb 2004
Location: Brazoria County, Texas
Posts: 38
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U-Joints
A friend of mine has a '89 1/2 Ext Cab that breaks the rear u-joint about every 12,000 miles. The truck has been lowered in the rear. Anyone got any ideas as to what is wrong?
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'72 Super Cheyenne '78 Bonanza A36 '00 Cadillac DHS '04 Chevy Avalanche |
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04-14-2004, 02:20 AM
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#2 |
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Registered User
Join Date: Oct 2003
Location: Broken Bow, OK
Posts: 1,385
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Does it have the 2-piece driveshaft? The lowering kit should have included a wedge for the rear-end to retain the correct angle on the drive-shaft. If the wedge was not installed correctly the driveshaft angle will place greater stress on the U-joints causing them to wear out quickly.
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95 K3500 SRW 5.7L Vortec 4L80e 4.10 G80 2001 GMC C3 6.0 AWD, Volant, 3/5 drop TBSS intake, HP tuners, pullies, 05 efans, 05 front brakes, etc. 2003 Tahoe Z71 Silverado front clip |
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04-14-2004, 08:24 AM
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#3 |
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My Name Is Mudd
Join Date: Feb 2004
Location: Bangor, Maine
Posts: 101
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I break or wear out the rearmost u-joint evert year or so. I actually was talking about this yesterday whith some other GM truck owners, who lose the rearmost once a year. I say it's the fact that the u-joint can only be grased out of the truck, so its the once a year that the joint gets greased. Check pinion angle and for loose mounts, but if you drive your rig hard then one u-joint once a year is kinda typical
matt |
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