MaxTrac rear u-bolts deliver a precise fit for 3in and 4in lift blocks with 12.50in x 2.625in x 9/16in sizing in a set of four.

• Exact length and diameter clamp lift blocks securely to leaf springs without modification or spacers
• Set of four covers both rear axle locations for complete installation on 3in or 4in lift kits
• Dimensions match common MaxTrac suspension setups to prevent axle shift under load or during cornering
• Threaded ends accept standard nuts for straightforward torqueing and long-term hold
• Heavy-duty steel construction resists stretching and fatigue common in lifted-truck applications
• Direct replacement avoids compatibility issues that arise with universal u-bolts sized incorrectly
• Works with both 3in and 4in blocks so owners can upgrade lift height later without buying new hardware