Upper Control Arm Shaft - GM- Offset

The Upper Control Arm Shaft - GM-Offset from Global West is a precision-engineered suspension component designed to correct geometry issues in GM front-end suspensions, particularly on vehicles that have been lowered or modified. This offset shaft addresses the camber and caster changes that occur during chassis modifications, restoring proper wheel alignment and tire contact patch. Whether you're building a street rod, restoring a classic Chevy, or dialing in a performance suspension setup, this component is essential for maintaining handling geometry and maximizing tire life after suspension work.

This Upper Control Arm Shaft features an offset design that compensates for geometry changes inherent to GM A-body and other platform suspensions when ride height is altered. The offset geometry works by repositioning the upper control arm pivot point, which adjusts the kingpin inclination (KPI) and wheelbase geometry to maintain proper camber curves throughout the suspension's range of motion. Manufactured to OEM tolerances, the shaft ensures consistent fitment and allows technicians to eliminate excessive negative camber, reduce tire wear, and improve directional stability—critical factors in both street and performance applications where factory geometry no longer applies.

Mechanics and suspension builders favor this component when installing coil-over systems, air suspension, or traditional lowered setups on GM vehicles where stock geometry correction is necessary. The 16.6-inch length and compact 2.3 x 2.2-inch cross-section make installation straightforward on most GM A-body frames and similar platforms. Proper installation requires alignment afterward to verify camber and caster settings, ensuring the vehicle tracks straight and tire wear remains even across the contact patch for thousands of miles of reliable performance.