[gmc684x4]

Did you bolt the spring perchs on with 7/16 grade 8 bolts ?

I have a line on a c30 running truck been decideing on what could do to it
A 70 gmc 1 ton dually 4x4 would be a good project for it a spare sm465 with 205 tcase a spare 69 k10 chassis 8 bolt dana 44 and dana 60 rear i guesing the rear in the c30 is a dana 60