SD's super pivot

the poly joints are perfect for almost all suspension applications (helps reduce vibration also), the super pivots are bad a$$ too, not that big of a difference. i personally recommend getting the bolts w/ grease fittings for the polys

obviously there are alot of experts on this subject

the poly flex joints that gravity werx mike uses has poly bushings that case the "ball", so theres a bushing between the rear end and the link bar.....

To this present time, there are no production vehicles that are equipted with an air ride set up that is capable of doing what my truck can do. There would be no reason for factorys to use super flex joints. I dont understand why people keep referencing what people use on factory cars or what people use to replace factory joints. I know my truck is very far from what the factory ever had in mind.