Steel threaded sleeve that fits inside the tail light stanchion to mount the tail light on a Model J Duesenberg. This part replaces the the original non-removable Duesenberg part with a removable part to ease replating and restoration of the tail light.
Nut: 1.625 x .250
Nut hole centers: .125 x 1.281
Sleeve OD: 1.250
Sleeve ID: .750
Length under installed nut: 1.375