Re: 1979 Chevrolet C70 Ring and Pinion Upgrade
why not the whole used 3rd member swapped in ?
and watch the top speed . . . as these old trucks and there old design tires might NOT be speed rated for the speed you can now go .
bad things happen when over the speed rating . . .
friend years ago did it in a car . way over speed rating and front 2 tires shifted the belts so bad the next day he almost could not drive it to the tire store .
my 88 gmc 7000 366/5 speed / 2 speed rear has 6.57 aspr the rpo code sheet in it. and 10.00x20 tires.
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77-k30lb BIG truck build .
87-k30lb budget beater build .
85-k30lb the plow machine build .
85-c10sb summer fun toy .
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HOLLEY SNIPER efi = worst case of p.i.t.a i ever had .
EDELBROCK pro flo 4 = best deal going so far . love my setup works great.
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