Repl BJ Shim Kit

The Repl BJ Shim Kit from Allstar Performance is an essential suspension tuning solution for enthusiasts running adjustable ball joints. Ball joint spacers allow fine-tuning of suspension geometry, caster, and camber angles—critical adjustments for handling optimization on street cars, track vehicles, and competition builds. This kit provides the precision thickness options needed to dial in your suspension without replacing entire ball joint assemblies.

Engineered from durable steel with zinc oxide coating for corrosion resistance, the Repl BJ Shim Kit includes three spacer thicknesses—0.123 inch, 0.252 inch, and 0.515 inch—allowing incremental suspension geometry changes. Stacking shims of different thicknesses lets mechanics achieve the exact suspension height and angle needed for specific driving conditions or alignment targets. The compact design (4.05 x 0.55 x 7.05 inches) and lightweight construction (0.25 lbs) make the kit portable and easy to integrate into any suspension workstation.

This shim kit is ideal for mechanics and DIY builders working with Allstar adjustable ball joints on independent front suspension systems. Whether you're lowering a street rod, adjusting caster for improved steering feel, or fine-tuning alignment on a race car, shimming offers a cost-effective alternative to purchasing new ball joints. Compatible with standard ball joint installations, the Repl BJ Shim Kit supports suspension geometry changes without frame modification or component replacement.