Team Associated Caged Thrust Bearing Set for Ball Differentials #91990 in factory sealed retail package.Ships 1 business day after payment.Free 30 day returns with 20% restocking fee for opened retail package.Details:This thrust bearing set for ball differentials is a precise and easy-to-use upgrade for Team Associated ball differentials. The caged thrust bearing simplifies assembly, automatically spacing the thrust balls for equal loading. The thrust balls run on two V-grooved thrust rings for minimal drag.#91990 is a direct replacement for #6573 diff thrust washers and #6574 5/64" balls.See below for compatibility.This part fits the following vehicles (not included):RC10B6.1DRC10B6.2DRC10B6.3DRC10B6DThis part fits the following other parts (not included):#91991 - RC10B6 Ball Differential Rebuild Kit with Caged Thrust Bearing#91992 - RC10B6 Ball Differential Kit with Caged Thrust Bearing