Quote:
Originally Posted by 46/72 truck guy
Hey folks, Im a new member but long time truck lover. I just recently bought a 1972 K20 Cheyenne super with a 4 speed manual and 4:10 rear. I would like to change the rear gears to a more highway friendly set. Does anyone have a suggestion as to what gearing I should go with? ie 3:73 or 3:03 Any help would be greatly appreciated.
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You can also consider running larger tires to balance out the low gear ratio. These rear ends are also known for being bullet proof, so that should be a consideration as well when looking into a rear end swap. But like Bigdav said, parts for these are becoming harder and harder to find.