OE Part No. 3844252
Sonnax high clutch drum 28755 is a high quality, direct replacement for the GM Powerglide OE drum. The Sonnax drum is machined with 12 additional lugs to reduce rotating mass, allowing it to be used with 12- or 24-lug steel plates. The piston bore and other features are identical to OE. The drum also is available in Sonnax drum, hub and piston kit 28755-14K that accepts extra frictions for increased torque and holding power.