BTK Dual Differential Mount G80M3/G82M4/G87M2 S58MADE IN SAN CLEMENTE, CA ALL HARDWARE FOR ASSEMBLY INCLUDED The BuiltToKillUSA Differential Dual Mount is designed to reinforce one of the G8X platforms known weak points. By utilizing the unused factory secondary bushing location, it adds a second support to keep the differential stable under hard acceleration, aggressive launches, and spirited driving. This reduces flex and sharpens overall driveline response. installation is super simple. No
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