The Belltech 4° pinion shim set helps correct rear axle pinion angle to remove driveline vibrations. Sold in pairs, the kit includes two shims plus spring centering bolts and nuts and fits 2.5" or 3" wide leaf spring packs, including single and dual center pin applications. Available in multiple degree choices, these shims provide a straightforward way to fine-tune driveline angles.
Belltech PINION SHIM SET 4 DEGREE (PAIR)