MTF
FRF Addict
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.
Real Traction bars/arm like from Rogue Racing and KHC have swinging shackles that allow for the rear to move back and forth.
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Not like these cheaper ones
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