UMI PERFORMANCE 13503-2 UMI Performance 13503-2 Lower Control Arm U-Bolt Kit for 1963-1987 GM Full-Size Trucks

Restore secure lower control arm installation with the UMI Performance 13503-2 Control Arm U-Bolt Kit. Designed for 1963-1987 GM full-size trucks, this replacement hardware set provides a dependable solution for worn, damaged, or missing lower A-arm U-bolts. The kit includes four steel U-bolts and matching nuts for a complete installation at the control arm mounting points.
The UMI Performance 13503-2 U-bolts feature a hex-head design and 9/16-12 thread specification to support proper fitment with compatible GM truck suspension components. Each fastener is manufactured from steel for strength under the clamping loads associated with control arm installation. A cadmium-plated finish helps resist corrosion and supports long-term service in automotive environments, including exposure to road moisture and debris.
This lower control arm U-bolt kit is intended for restoration projects, suspension repairs, and routine maintenance on select GM full-size truck applications from 1963 through 1987. The included nuts help simplify replacement by providing the primary hardware needed for installation. Verify vehicle application and compare the existing suspension hardware before ordering to ensure compatibility. Choose the UMI Performance 13503-2 for purpose-built replacement hardware that supports a secure, serviceable connection between the lower control arm and frame.

Features:

• Application: Fits select 1963-1987 GM full-size trucks

• Component type: Lower control arm U-bolt kit

• Kit contents: Includes four U-bolts and matching nuts

• Construction: Durable steel fastener construction

• Finish: Corrosion-resistant cadmium plating

• Head style: Hex-head design

• Thread specification: 9/16-12 thread

• Brand and part number: UMI Performance 13503-2