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Click on image for the lowdown. 
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| | | Forums66 Topics128,073 Posts1,055,908 Members48,429 | | 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!
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#55028 01/16/2006 3:16 AM | Joined: Sep 2003 Posts: 343 Member | | Member Joined: Sep 2003 Posts: 343 | A lot of the newer vehicles are now going to 5W-20. My 2005 Dodge Magnum calls for 5W-20 and the MDS system will not function properly if you put a heavier oil.
1954 GMC 1/2-ton Longbed
1971 Pontiac LeMans Sport
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