SPC Performance Part Number 47242 caster shims are designed to provide positive caster adjustments on early-model, downsize Jeep vehicles. Installed between the lower control arm and the frame bracket, these shims help improve front-end alignment geometry and support more consistent handling after suspension changes or vehicle wear. They are a practical solution for Jeep applications requiring additional positive caster without replacing the original control arm mounting components.
The shims feature a 1/8-inch thickness and can be stacked when a larger caster adjustment is needed. This stackable design gives installers flexibility when fine-tuning suspension alignment to meet specific handling or steering requirements. Proper installation should be completed by a qualified technician, with all suspension fasteners tightened according to the vehicle manufacturer’s specifications.
This SPC Performance Jeep caster shim set includes six shims per package and is intended for selected early Jeep Grand Cherokee applications, including 1994, 1995, and 1998 models. Verify vehicle year, suspension configuration, and alignment requirements before installation. Product appearance and features may vary as design changes, improvements, and modifications are implemented. California residents: Proposition 65 warning applies.
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