Synergy adjustable ball joint top cap is a service replacement component for Synergy heavy-duty ball joints used on Jeep JK/WJ front suspensions. The cap protects upper joint internals and completes the assembly after installation or rebuild procedures. Supplied as a specific replacement piece, it preserves the integrity of adjustable joint assemblies without altering the intended fitment or service method.
Synergy Jeep JK/WJ HD Adjustable Ball Joint Top Cap