Metal Tech 4x4 Key Cone Rear Spring Upper Isolators (pair)

Patented dual-rate polyurethane rear spring upper isolators developed with Energy Suspension. Two-durometer construction: softer accordion upper section for initial engagement, firmer lower body near end-of-travel. Replaces soft factory spring cones on GX470/GX460 coil conversion setups. Sold in pairs. 100% designed, engineered, and made in the USA. U.S. Patent No. 11,691,473.