Re: 3/4 ton to 1/2 ton.
I converted my 70 GMC 2500 to a half ton. I used drop spindles for a 1/2 ton with disk brakes and replaced all ball joints using 1/2 ton parts. All parts bolted in with no mods.
In the back I replaced the leaf springs with RideTech Strong Arm rear suspension. I removed all the leaf spring hangers too. I also removed the 3/4 ton rearend and replaced it with a rearend from a 72 1/2 ton C10.
Truck is bagged on all for corners.
There is no need to replace the cross member from a newer truck.
I don't remember if I replaced the tierod ends or not. That was 20 years ago.
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1970 GMC 2500
700R Trans
RideTech 4 link rear suspension - Air Bagged on all four corners
350 SBC 300hp
Weiand Supercharger
FiTech EFI
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