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Click on image for the lowdown. 
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| | | Forums66 Topics128,087 Posts1,055,980 Members48,430 | | 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: Jul 2009 Posts: 56 Wrench Fetcher | | Wrench Fetcher Joined: Jul 2009 Posts: 56 | For the fact it is a flat lifter and not a roller then I would use any diesel grade oil in it. Thats what I run in my dad's 29 GMC truck. It has the extreme pressure treatment in it and it helps to prevent cam wear from the oil being pressed out from between the cam and the tappets for those who choose to be correct on parts names. so I run 10w30 diesel in all my vintage cars and yes even in my 9N Ford Tractor. | | |
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