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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!
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| | | | Joined: Dec 2015 Posts: 2,063 Big Bolt Forum Moderator | | Big Bolt Forum Moderator Joined: Dec 2015 Posts: 2,063 | Most of my vehicles without OD run a little under 3K going down the freeway (closer to 70 though). If I were me, I'd look for 23-2600. Lower might give you a bit better gas mileage but may not have the power you want to accelerate a bit without downshifting.
My 59 Suburban has a 350, 3.40 gears and 31x10.5-15 tires and cruises nicely at 60, 70, or faster if needed. You will probably want taller tires than that with your 3.73 rear gears. | | |
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