72 half ton rebuild questions

[Nightrider]

Trying to put my 1972 GMC back on the road, but not really sure how to set up the suspension. I used a 2/4 drop with only coils being cut in the past , but wasn't very happy with the performance at highway speed on bumpy/ choppy roads. Im planning on 18 inch rims in the future, running 15 now.. Driving on rough country roads or interstate hwy, hauling my ZX14r in back at times.
Should I just rebuild to stock dimensions or try 2.5 drop spindles with 1 inch drop front springs and deal with the leafs in back some way?? Thanks for input !

[SCOTI]

Originally Posted by Nightrider

Trying to put my 1972 GMC back on the road, but not really sure how to set up the suspension. I used a 2/4 drop with only coils being cut in the past , but wasn't very happy with the performance at highway speed on bumpy/ choppy roads. Im planning on 18 inch rims in the future, running 15 now.. Driving on rough country roads or interstate hwy, hauling my ZX14r in back at times.
Should I just rebuild to stock dimensions or try 2.5 drop spindles with 1 inch drop front springs and deal with the leafs in back some way?? Thanks for input !

What you should do depends on what YOU want.

If you want a 'better' ride quality AND you want the truck lowered mildly, drop spindles w/stock springs are the way to go up front.

If it has leafs out back.... All the early leaf trucks I've ridden in were rough because they were just trucks back then & the suspension was set-up for working vs. ride quality.
You could try updating to a newer/more modern leaf set-up but it would be trial & error.
You could swap to the truck-arm arrangement & coils (or bags) either stock height or dropped. T/A would definitely offer improved ride quality.
There's also coil-over set-ups you could consider.

It comes down to what you want & what you're willing to spend to achieve the results desired.