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Labor Day Putting down your wrenches or time for
MORE wrenching? 
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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: May 2001 Posts: 7,438 Extreme Gabster | | Extreme Gabster Joined: May 2001 Posts: 7,438 | I have no experience with the V6 so I can't help you there but I want to say I like your truck.
I do know the earlier GMC straight sixes were famous for running loaded, wide open, all day long. I'd bet the V6s were run the same way.
The 3.07 gears would be a big improvement but I'd recommend an OD transmission. I run an SM319 behind the 248 in the Suburban. I can run 70-75 all day long with the engine purring, not roaring.
I'd also recommend power front discs if you are going to be running 70-75. | | |
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