The Detroit Speed Swivel-Link™ Rear Suspension Kit eliminates bind and allows the suspension to fully articulate without the use of noisy spherical rod ends. Swivel-Link™ rear links allow for easy pinion angle adjustment without unbolting from the car for improved traction and lower driveline vibrations. The Fox Body Mustang Swivel-Link™ Kit comes with new hardware and directly bolts on to replace the factory links. A coilover conversion kit is required before installing the Swivel-Link™ kit, as there is no spring perch on the links like on the factory arm.