Powerglide Billet Steel Long Clutch Hub for 9 Clutches. Made from 4140 HTSR billet steel. Slotted to reduce rotational weight. When used in combination with the TCS high clutch drum piston (Part#744000PS) the long steel hub will accommodate 9 Alto Red Eagle frictions for a yield of 15% more clutch area! Can be used with any combination of Raybestos blue plates. Will retroft to stock Powerglide drums and accept up to9 Alto Red Eagle frictions.