TRE Classic Sprocket Adapter

Sprocket adapter for TRE Classic chain drive diff.  Sprocket mounts with TRE Classic standard bolt pattern of 6x 3/8" bolts on 4.5" BCD with a 3.75" OD pilot.  Standard flange thickness is 3/8" with a 3/4" option for larger chain offset requirements.  Also available in hardened steel for increased engine power as well as customizable flange thicknesses between 3/8-3/4".