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Click on image for the lowdown. 
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| | | Forums66 Topics128,154 Posts1,056,838 Members48,456 | | Most Online14,466 Apr 26th, 2026 | | AD Chevy Trucks Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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on the Internet for over 30 years! and not clogged down with Ads! Again, thanks! | | | | Joined: Dec 2003 Posts: 2,733 Shop Shark | | Shop Shark Joined: Dec 2003 Posts: 2,733 | There may be some shims missing where the carrier bearing bolts up. I know it's rubber mounted but it still needs to be sort of square to the bearing itself. The cushion mounting allows for the upward motion of the rear end and vibrations. I would also check the carrier bearing itself for correct dimensions and installation.
Gas drivlines (3000rpm) should never exceed 60" ctr/ctr and 72" is correct for slower((2000rpm) turning diesels. Runout should not exceed .005 at the yoke and .010 in the middle of the shaft. If this is maintained and the phasing is correct you will not have a vibration problem. | | |
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