Re: Gear vendor's with 3:54 rear gears and th400?
29" tires with 3.73's and no OD isn't too bad (2,600-2,700) - since you're sticking with the 3.54's I really don't think the GV is going to be of any benefit. With a diesel, 383 stroker, or something like that it might be alright, but your drivetrain as-is with 3.54's will have the engine right in its sweet spot. I'd cruise that truck all day at 65-70.
4.10's with the 29's and a Turbo 400 + GV would be fun.
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Alex V.
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1967 C10 Suburban, 350/NP435, Green/Green, PS, PB, HD cooling, charging, shocks, and springs.
1985 GMC C3500 SRW, Sierra Classic, 454/TH400, white/blue.
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