SPC Performance 71045 Gm Rear Camber Shim - 25

The SPC Performance 71045 is a fixed-change rear camber shim engineered for GM vehicles equipped with twist beam rear axles. Designed for precise, repeatable alignment correction, this shim allows technicians and enthusiasts to dial in rear wheel alignment without drilling, cutting, or modifying the vehicle.

This shim delivers a -0.25° camber change and is fully stackable — up to two shims can be combined for a maximum correction of -0.50°. For even greater versatility, this camber shim can be paired with a compatible SPC toe shim to simultaneously address both camber and toe angles in a single service.

Key Features:

• Corrects rear camber in ±0.25° increments per shim
• Compatible toe shims correct toe in ±0.10° increments
• Stack up to two shims for maximum alignment change
• Designed for twist beam rear axle applications on GM platforms
• No vehicle modifications required — bolt-on installation
• Sold individually; combine with SPC toe shims for full alignment correction

Proper rear wheel alignment directly impacts tire wear, fuel efficiency, and straight-line tracking. The SPC Performance 71045 provides a cost-effective, professional-grade solution for restoring or fine-tuning rear camber on supported GM applications.