Belltech 4979 6-Degree Pinion Shim Set for 2.5- to 3-Inch Leaf Springs

Belltech axle pinion shims provide you the solution to easily correct the pinion angle of your rear axle to remove any unwanted vibrations. Crafted of high strength ductile cast iron and include new spring centering bolts. Belltech Pinion Shim kits are available sold in pairs in your choice of 1-6 degrees of angle. Belltech universal extruded aluminum axle shims are sold in pairs and are available in various degrees to solve almost any driveline vibration. Fits 2.5" or 3" wide leaf's including dual center pin applications. Ships in 1 box Universal Fitment 6 Pinion Shim for 2.5 in.-3 in. Wide leaf springs - (Also fits 2 center pin leaf springs)

• Aid in correcting driveline angles to remove unwanted vibrations
• Universal fitment for single and double center pin applications
• Includes: 2x shims, 2x spring center bolts, 2x nuts
• For 2.5" or 3" wide leaf spring packs
• 6 degree shim set

Correct rear axle pinion angle and help eliminate unwanted driveline vibrations with the Belltech 4979 6-Degree Pinion Shim Set. Designed for universal fitment, this shim kit provides a practical solution for adjusting the relationship between the rear axle and driveshaft on leaf-spring suspension systems. Proper pinion angle correction can improve driveline operation and help reduce vibration-related noise and wear.

Belltech manufactures these axle shims from high-strength ductile cast iron for dependable performance under demanding suspension loads. The kit is compatible with 2.5-inch or 3-inch-wide leaf spring packs and supports both single and dual center-pin applications. New spring centering bolts and nuts are included to help simplify installation. The Belltech 4979 is sold as a pair and provides a 6-degree correction angle for applications requiring precise rear axle alignment.

Key product specifications and technical data:

• Brand: Belltech
• Part Number: 4979
• Product Type: Rear axle pinion shim set
• Correction Angle: 6 degrees
• Quantity: Pair of shims
• Leaf Spring Compatibility: 2.5-inch or 3-inch-wide leaf springs
• Center-Pin Compatibility: Single or dual center-pin applications
• Material: High-strength ductile cast iron

What's included: Two Belltech 6-degree pinion shims, two spring center bolts, and two nuts. This product features universal fitment; verify leaf spring width, center-pin configuration, and required pinion angle before installation. Professional installation is recommended when driveline angle correction or suspension components are being modified.

Features:

• Pinion Angle Correction: Helps correct rear axle driveline angles to reduce unwanted vibrations.
• High-Strength Construction: Ductile cast iron construction is designed to withstand demanding suspension loads.
• Universal Fitment: Works with 2.5-inch and 3-inch-wide leaf spring packs.
• Center-Pin Compatibility: Supports both single and dual center-pin leaf spring applications.

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: t
Units Per Sku: 1