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GMC91 · 11-24-2010, 12:15 AM

The should be the same except the axle bolt pattern. Which you already know you will need to swap.

11-24-2010, 12:15 AM	#2
GMC91 Always trouble Join Date: Jul 2009 Location: Hartsellle, Al Posts: 1,111	Re: 73-80 12 Bolt question The should be the same except the axle bolt pattern. Which you already know you will need to swap. __________________ 91 Silverado Regular cab, 2wd, swb-project truck 97 Silverado Extended cab, 2wd, swb-driver