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Click on image for the lowdown. 
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8 members (klhansen, Shade Baby, Shaffer's1950, JW51, Cosmo, Oswald, 2 invisible),
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Global Mod,
Mod | | | Forums66 Topics128,075 Posts1,055,919 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!
| | THANKS!
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: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 | I get 18MPG (USA gallon) highway-driving at 55-60MPH with a 261 and 3.55 rear-end and 31.5" diameter tires. The MPG drops to 12-14MPG at 65-70MPH (most likely a result of higher RPM and higher wind resistance). | | |
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