New HD version offers the upmost in durability and long life over factory hydraulic systems. Works with Saginaw, Muncie, GM T-10, & Jerico transmissions, as well as any transmission that has a bearing retainer collar with an outside diameter of 1.375" or less, as the inside diameter of this throwout bearing is 1.380". Will not fit T-5 or non-GM T-10 transmissions. Snap ring on collar keeps the bearing from blowing apart if over-extended. Includes a set of conical shims to properly fit the bearing. Also includes 2 different installation studs, one 5/16"-18 and one 3/8"-16. You can ...