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Mod | | | Forums66 Topics128,056 Posts1,055,799 Members48,426 | | 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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#58697 04/01/2006 11:39 PM | Joined: May 2004 Posts: 920 'Bolter | | 'Bolter Joined: May 2004 Posts: 920 | I stuck a gear vendors O.D. on the back of my sm420 and couldn't be more pleased. My rear is 3:90 w posi. I drove to Portland and back recently and averaged 75mph on the way back. 4th over is the equivilant of having 3:08 rear. It's an expensive way to go, but it gives you the best of both worlds. Also, 3rd over is AWESOME for hills and in city driving over 30mph. This way you also get to keep your granny and use the truck the way it was intended. | | |
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