The HPP-19156 is our internal part number for the Powerglide HD reverse clutch pack pressure plate retaining snap ring supplied by BTE. This snap ring is manufactured slightly oversized and normally requires a small amount of material to be removed at the ring gap to allow proper fitment but provides a secure tight fit in the case to handle the large axial force applied by the reverse piston on a high line pressure racing Powerglide clutch pack.
