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Old 01-14-2019, 01:31 PM   #4
Nick M3
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Join Date: Oct 2003
Location: Bethesda, MD
Posts: 12,453
Quote:
Originally Posted by rumatt View Post
What do the Sulastic ride shackles do? Create a small range of softer travel before the full spring rate kicks in?
Yes. The problem with leaf springs is that they are at their stiffest unloaded, so the sulastics add softness in the unloaded part of the spring travel.

They aren’t without trade offs - you get more axle wrap with them. Worth it, IMO. Would not be worth it if I always had 500-1000lbs. in the bed.
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