Zombie What are the drawbacks of extended length shackles ? I know they can lengthen your suspension droop and soften up your spring rate. I have my icons leafs configuration 3 with leaf added basically stiffest and truck rides very smooth. I wanted it tad lower in rear, pic is with stock shackles , fully loaded in back
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extended length shackles will:
Shorten spring life
Shorten driveshaft life
Create the potential for increased spring wrap
They are not compatible with traction bars. The extended shackles allow the rear axle to move a few inches farther forward during droop travel to gain the additional total down-travel. Traction bars are designed to keep the rear axle in a predefined arc.
As the spring unloads, the traction bars won't let the rear axle swing forward ( by design ) and the extended shackles are not able to rotate as they are without the traction bars. ( because the shackles are designed for one arc and the traction bars are designed for a different arc. )
This scenario leads to binding and tends to rob about 2.5-3" of droop travel out of the truck.
The combo of the two can also cause shock issues and certainly makes it near impossible to tune the shocks.
I experienced this on my truck, and I've seen it on 4 or 5 other gen2 raptors.
The combo leads to an incredibly ****** ride which is the most noticeable offroad.