SPC Performance BREAK AWAY AXLE SHIMS(6)

Starting with a 1-degree taper, these heavy-duty axle caster shims from SPC Performance are designed to help you fine-tune your Jeep CJ's suspension. When you're working on the drivetrain, especially with leaf spring setups common on older Jeeps, getting the pinion angle just right is crucial for smooth operation and to prevent driveshaft vibrations. These shims are specifically made for leaf springs that measure between 1-3/4 inches and 2 inches wide, making them a practical choice for many Jeep CJ5, CJ6, and CJ7 models from the 1970s and early 1980s.

Each shim in this box has a 1-degree taper, allowing for precise adjustments to the angle of your rear axle. This is particularly helpful after lifting a vehicle or when installing new components that might alter the driveshaft's alignment. The heavy-duty construction means they're built to handle the stresses of off-road use and daily driving, ensuring they hold their position and perform reliably. You get six shims in total, giving you flexibility for your specific setup.