1976 K5 Blazer, 400cid engine, TH350 automadic transmission, and 38x14.50x16.5 Ground Hawg radial tires on 16.5x12 wheels. Dailly driver, moderit wheeling (Mostly trails) I have a set of 1978 3/4 ton axles with 373 gears. (looking for Dana 60 with 456 gears and regear rear axle in future) Opinions please. Anything I need too look into ???