ProSteer ball joints are Dynatrac's solution to the woefully inadequate factory ball joints. ProSteer ball joints provide high strength, longer life, and can be rebuilt without special tools. We had to kiss the top of the lower joint with a grinder so the boot of our RCV CV axle shafts wouldn't rub. The ProRock 44 came with the track bar bracket in OE position. As our ORE steering knuckle was already drilled for a flipped drag link, we used a Poly Performance raised track bar bracket to keep geometry correct.