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it allows the suspension to drop easier when launching. It may effect traction and 60' times, depending on weight transfer.



It will also allow the car to be electronically scaled better. Low friction bushings/bearings will repeat better on the scale pads.

Take the shocks off you race car and then put the car on the scales. Bounce the car up and down and see if the scale number reproduce.

But more importantly the dynamic weight tranfers on the track will be more repeatable and predictable. Any bushings hanging up temporary holds up the chassis and transfer and thus transfer and thus 60' times for drag racers.

I work on a circle track race car and bushing friction and chassis free-ness is a major concern. Just a one bushing hanging up has cost us lap times and race wins until we located and found the bind later.

That being all being said, Mopar lower bushings really needs to be spherical bushings with xyz axis of rotation. The front strut rod arc gives the outer end of the lower control arm some for and aft movement as it travels in bump and jounce.

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On a Mopar however, the camber and more importantly caster are adjusted by rotating the front and rear cam bolts which moves the front or rear of the control arm relative to each other. This inherantly misaligns the bushing or bearing centerlines in the control arm such that they are almost certainly not concentric or parallel. A rubber or poly bushing can flex to adjust for this misalignment but a rigid roller bearing cannot. This condition puts the roller bearing into a "bind" situation.



ABSOLUTELY. UCA must have sperical rod ends in a mopar with independently adjusted front and rear cam bolts.