A-Arm 9.0in Screw In B/J Slotted Shaft

The A-Arm 9.0in Screw In Ball Joint Slotted Shaft is a critical steering and suspension component engineered for vehicles requiring precision front-end geometry control. This ball joint assembly serves as the pivot point connecting the control arm to the steering knuckle, enabling smooth articulation during suspension travel while maintaining wheel alignment. Whether you're rebuilding a worn suspension system, upgrading to adjustable geometry, or restoring classic truck handling, this screw-in design offers the reliability and adjustability serious mechanics demand for both on-road and off-road applications.

Featuring a slotted shaft design, this 9.0-inch ball joint facilitates angle adjustment without requiring complete removal—a time-saving advantage during alignment work. The screw-in mounting system provides secure, repeatable installation while eliminating the need for pressed components that demand specialized equipment. The slotted shaft allows fine-tuning of caster and camber angles, critical parameters that directly affect tire wear, steering response, and suspension bind during extreme articulation. At 3.32 lbs, this component delivers the strength needed for load-bearing suspension duty while remaining practical for installation in tight engine compartments or modified chassis layouts.

Mechanics and suspension builders favor this ball joint for independent front-end systems, particularly in lifted trucks, competition vehicles, and restorations where geometry precision matters. The 9.0-inch length suits most mid-size control arm configurations, and the screw-in installation works seamlessly with both OEM and aftermarket suspension geometries. Installation requires basic hand tools and an alignment shop check afterward to verify geometry specs. Verify fitment against your vehicle's control arm bore diameter and thread pitch before ordering to ensure hassle-free installation.