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Click on image for the lowdown. 
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| | | Forums66 Topics128,183 Posts1,057,263 Members48,467 | | 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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For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: Dec 2001 Posts: 1,248 'Bolter | | 'Bolter Joined: Dec 2001 Posts: 1,248 | The front ball should get some oil from the transmission itself. There is usually a plug you remove to prefill the front ball on the shortwheel base trucks. Not sure about the rear ball on the GMC. | | |
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