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Click on image for the lowdown. 
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| | | Forums66 Topics128,110 Posts1,056,255 Members48,437 | | 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 2003 Posts: 2,733 Shop Shark | | Shop Shark Joined: Dec 2003 Posts: 2,733 | Simply two different methods of determining the power for taxable point of view and/or an SAE rating and/or the advertising perspective. I guess I don't see why it matters so much. Why don't you check over at OldGMCTrucks.coma and see what they have to say.
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