sewlow
Bitchin' Stitchin'
Buy a set of lowering shackles. $50-$60.00? Then you have a choice of dropping the rear either 1 inch or 2.
Usually, these trucks need a 3" diff Fr>Rr to ride level.
If you do go to the 2" drop mounting point on the shackle, best check out the pinion angle.
May need a shim to bring the nose of the pinion back up.
But I doubt if you'll have to use that 2" drop to get level.
Still, be sure to check the pinion angle even with just the 1" drop.
...and if you have to shim the angle, you will have to get a longer centering bolt for the leaf springs.
Crank a nut to the head with some red loc-tite, followed by a rounding-off of the nut's shoulders to the diameter of the bolt's head.
This extends the head of the centering bolt & allows for it to drop down through the wedge & able to reach the locating holes in the spring perch pads on the diff.
GM list 4 different lengths of centering bolts for these trucks, according to the spring pack count.
C1500's use the shortest. Just get the next longest listed.
Cheap from the stealership. Not even 5 bucks.
Shims come in all different angles & widths. Thses trucks use a 2.5" wide spring, so the shim has to be the same.
The amount of degree to be shimmed will be determined by the truck.
Drop leafs. Ewww.
2nd from the top is as good as it gets for a 400.
Usually, these trucks need a 3" diff Fr>Rr to ride level.
If you do go to the 2" drop mounting point on the shackle, best check out the pinion angle.
May need a shim to bring the nose of the pinion back up.
But I doubt if you'll have to use that 2" drop to get level.
Still, be sure to check the pinion angle even with just the 1" drop.
...and if you have to shim the angle, you will have to get a longer centering bolt for the leaf springs.
Crank a nut to the head with some red loc-tite, followed by a rounding-off of the nut's shoulders to the diameter of the bolt's head.
This extends the head of the centering bolt & allows for it to drop down through the wedge & able to reach the locating holes in the spring perch pads on the diff.
GM list 4 different lengths of centering bolts for these trucks, according to the spring pack count.
C1500's use the shortest. Just get the next longest listed.
Cheap from the stealership. Not even 5 bucks.
Shims come in all different angles & widths. Thses trucks use a 2.5" wide spring, so the shim has to be the same.
The amount of degree to be shimmed will be determined by the truck.
Drop leafs. Ewww.
2nd from the top is as good as it gets for a 400.
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