Synergy Jeep JK/WJ HD Non-Knurled Adjustable Ball Joint Kit

The Synergy Manufacturing HD Adjustable Ball Joint Kit is designed for superior durability and performance in 2007-2018 Jeep Wrangler JK models. This heavy-duty, non-knurled ball joint kit improves road manners, corrects sloppy steering, and enhances performance both on and off-road. It features CNC machined 4140 steel, heat-treated, induction hardened, and ferritic nitrocarburized lower ball joint bearing surfaces for extreme wear resistance. The fully adjustable and rebuildable design ensures longevity without needing to press the ball joints out of the axle end forging yokes. The kit includes all four ball joints for one Jeep and an adjuster tool. It is compatible with all aftermarket axle shafts, including RCVs, and comes with a limited lifetime warranty for the original purchaser, covering defects in materials or workmanship.