oil seal transmission maindrive gear rubber OD - 65-E66 4-sp

For 4-speed models fits 4th gear, for 5-speed models fits 5th gear.  OEM replacement reference 12013, 12013A. 65-E66 4-sp B.T.; 4-sp L81-84 B.T.; 5-sp 80-90 B.T. (NU)