Coil Over Top 5/8in Hole Black

The Coil Over Top 5/8in Hole Black from ALLSTAR PERFORMANCE is an essential suspension component designed for serious suspension builders and performance vehicle enthusiasts. This top-mount collar serves as the upper attachment point for coilover suspension systems, connecting the shock body to the vehicle's frame or chassis. If you're upgrading a street rod, race car, or custom build with adjustable coilover dampers, this part is fundamental to achieving proper ride height control and suspension geometry tuning.

Engineered with a 5/8-inch mounting hole, this black-finished collar accommodates standard coilover shock studs and fastener assemblies used across modern and classic suspension platforms. The precision-machined design ensures repeatable fitment and load-bearing reliability, critical for maintaining consistent suspension geometry under dynamic cornering and acceleration loads. ALLSTAR PERFORMANCE's proven track record in motorsports-grade components means this top mount is manufactured to tight tolerances, reducing play and vibration at the shock mount interface—factors that directly influence handling response and tire contact patch stability.

Mechanics and fabricators working on independent front suspension conversions, lowering builds, and full-custom chassis setups will find this collar indispensable. The compact design (5 x 1.5 x 7 inches, weighing just 0.41 lbs) integrates seamlessly into tight engine bays and frame rails where space is at a premium. Installation pairs with your chosen coilover kit's upper control arm brackets or frame mounts—verify the 5/8-inch hole aligns with your shock tower configuration before ordering to ensure compatibility with your specific suspension package.