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Re: diff ratio
Is it a cab & chassis truck? If not then its probably a Dana 70 HD. A NV4500 swap would make it cruise a lot nicer.
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Tony
1985 GMC K2500 restoration Project: Rust, White & Blue
1989 Chevy R3500 CC Cummins & 4X4 swap some day...
1989 Burb (D60, 14BFF, 12V, NV4500, NP205, 37" tires in progress)
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