Low Friction B/J Screw Straight Pin K772 Std-1

The Low Friction B/J Screw Straight Pin K772 Std-1 from ALLSTAR PERFORMANCE is a greasable upper ball joint engineered for performance enthusiasts and fabricators seeking adjustability and durability in suspension builds. Ball joints are critical pivot points that allow vertical suspension movement while maintaining steering geometry—this screw-in design is particularly valued in race cars, street rods, and heavily modified vehicles where suspension geometry tuning is essential. The straight pin configuration with low-friction construction minimizes bind and reduces wear on both the ball joint and steering components during cornering and load transitions.

This ball joint features a take-apart design that allows for disassembly and inspection—a feature favored by serious fabricators who need to verify wear patterns or replace internal components without full removal. The screw-in mounting method provides robust threads for secure installation in tapped housings, while the low-friction bearing surfaces reduce parasitic drag in the suspension system, translating to more responsive handling feedback. Standard to 1-inch pin adjustment capability means builders can fine-tune caster and camber within a defined range, critical for dial-in work on performance platforms. Hardware is included, simplifying the ordering process and ensuring compatibility of fastening components.

This upper ball joint is ideal for classic car restoration, short-track racing, drag racing suspension systems, and any application demanding precision adjustability and long service life. Greasable construction allows periodic maintenance to extend component life and maintain low-friction operation, making it a practical choice for both street and competition use. Verify your vehicle's suspension geometry specifications and thread requirements before purchase to ensure proper fitment and alignment outcomes.