Cusco rear differential pinion distance collar for Toyota 86, Subaru BRZ and Scion FR-S is a service component intended for rear differential maintenance or rebuilds. The collar specifies pinion distance for correct gear mesh and is supplied as a vehicle-specific replacement part to restore proper differential geometry during service procedures on these chassis.
Cusco Toyota 86 / Subaru BRZ / Scion FR-S Rear Differential Pinion Distance Collar