[gmc67swb]

Originally Posted by a1953mdl

You have traction bars, are they adjusted properly? Iirc you only want about 1/2" between the snubber and the leaf. Are the bars long enough to reach to the main leaf?
Alternative to changing to the coils, move the axle forward (redrill the spring perch) about a inch. That makes the front side shorter and stiffer and allow the back part of the spring to work (like old super stock springs). IMHO don't remove any leaves to reduce wheel hop.
Does it have the problem on both asphalt and concrete?
Might check to make sure every thing is tight on you rear end mounting points.
Just rattling on.... hope something helps.
Lee

sorry about that should have made it clearer....on street tires it will burn the tires off no wheel hop....(asphalt r concrete) its when i'm at the track with the M/T Sticky's on....