GMW17817 1st Edition, June 2017 HIGH PRESSURE SPRAY WASH TEST (FOR AXLE, TRANSFER CASE, POWER TRANSFER UNIT (PTU), REAR DRIVE MODULE (RDM), OR FRONT DRIVE UNIT (FDU) INCLUDES: CG4916*GMW HIGHLY RESTRICTED STANDARD - REQUIRES SPECIAL APPROVAL CONT SALES FOR SPCL REQ - US CUST CALL 1-800-854-