The TJ Rear upper Coil Relocation Kit moves the upper spring rearward to keep the coil spring vertical instead of being on angle.
The OEM spring perches were set at an angle which is great for no lift but once you start to lift your vehicle, the angles change resulting in bowing spring that can be permenantly damaged an even unseated during articulation. This kit eliminated the factory angle allowing any lift height with no bowing.
the upper coil is retained using 1/4″ metal an a 3/8 riv nut for a 3/8 bolt.
the main plates are made out of 3/16 pickled an oiled steel.
Is shipped in pieces an you must assemble.
welding an grinding required