This is a Machined Aluminum Reinforced Differential Crossmember for Nissan R200 equipped Hakosuka Skyline GC10s.
This crossmember allows the use of the aluminum finned large capacity differential covers from ESCORT. As can be seen in the photos, the expanded area clears the crossmember perfectly. Complete with urethane bushings around the diff mounts and solid bushings to mount to the body.
Silver, Gold and Black finishes are available.