Tuff Country 4° Axle Shims – 3" Wide, 3/8" Center Pins (Pair) (90015)

Correct driveline angles and reduce vibration with the Tuff Country 4 Degree Axle Shims. Designed for lifted vehicles, these shims help restore proper pinion angle after suspension modifications, improving driveline performance and reducing stress on critical components.

These axle shims are installed between the leaf spring and axle to adjust the rear differential angle. This is essential on lifted setups where suspension geometry changes can lead to driveline vibration, premature wear, or reduced performance if not properly corrected. Built for durability and precise fitment, these shims are ideal for both daily driving and off-road applications.

Sold as a pair, they provide a reliable solution for correcting driveline alignment on vehicles with leaf spring suspension.

Features:

• 4-degree axle shims for correcting pinion angle
• Universal application for leaf spring vehicles
• Helps reduce driveline vibration after lifting
• Improves driveline performance and longevity
• 3-inch wide design with 3/8-inch center pins
• Durable construction for long service life
• Installs between leaf spring and axle
• Sold as a pair
• Made in the USA
• Backed by manufacturer limited lifetime warranty

Fitment:

• Universal application (vehicles with 3" wide leaf springs)
• Compatible with most leaf spring suspension setups

Notes:

• Designed for lift kit applications
• Used to correct driveline/pinion angle after suspension lift
• Not required for all setups — verify need before purchase
• Ensure proper width and center pin size before installation
• Professional installation recommended
• Inspect U-joints, driveshaft, and suspension components during installation