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Bear80 · 01-16-2007, 02:01 PM

88-98 1500 2wd springs. 2wd are 3 leafs + over load. HD trucks like the 2500 and up will have 4-6 + over load leaf and 4wd start at 4 leafs and go up to 6 leafs depending on setup. You can use the 99-current springs but might not get the same hight as the older springs. The newer chevy trucks use 2 leafs both 2wd and 4wd plus a block(which is total BS for a manufacture to use). I would guess if you used a 99-up springs you'd need an add-a-leaf or re-arched lift springs or blocks.

Also mount the front hanger 11 1/2" forward and the rear shackle mount 4 1/2" back. All the online info states 11" and 4" but that doesn't work well on the 84-88 trucks/4runners. Pick up a 4* castor shim to correct the pinion angle. Also I found a 7" hole to hole shackle works better than the advertised 6" when a new rear mount it used. If you use the stock rear shackle mount you'll need at least a 9" hole to hole shackle. Just whatever you do DO NOT USE A DOUBLE SHACKLE!

Oh and the 91-98 springs are IMO made better than the 88-90 springs, the newer ones use anti-sweek pads.

01-16-2007, 02:01 PM	#4 (permalink)
Bear80 Registered User Join Date: Apr 2005 Location: San Antonio TX Posts: 364	88-98 1500 2wd springs. 2wd are 3 leafs + over load. HD trucks like the 2500 and up will have 4-6 + over load leaf and 4wd start at 4 leafs and go up to 6 leafs depending on setup. You can use the 99-current springs but might not get the same hight as the older springs. The newer chevy trucks use 2 leafs both 2wd and 4wd plus a block(which is total BS for a manufacture to use). I would guess if you used a 99-up springs you'd need an add-a-leaf or re-arched lift springs or blocks. Also mount the front hanger 11 1/2" forward and the rear shackle mount 4 1/2" back. All the online info states 11" and 4" but that doesn't work well on the 84-88 trucks/4runners. Pick up a 4* castor shim to correct the pinion angle. Also I found a 7" hole to hole shackle works better than the advertised 6" when a new rear mount it used. If you use the stock rear shackle mount you'll need at least a 9" hole to hole shackle. Just whatever you do DO NOT USE A DOUBLE SHACKLE! Oh and the 91-98 springs are IMO made better than the 88-90 springs, the newer ones use anti-sweek pads. __________________ 1986 Truck - Monster IFS 1997 FZJ80 - Locked, Lifted, Ready Range Rover Recovery Vehicle Last edited by Bear80; 01-16-2007 at 02:05 PM.