TM 9-2320-361-10 3-17. REAR WINCH SHEARPIN REPLACEMENT (Contd) c. Removal (Truck, M764). (1) (2) (3) (4) (5) Park vehicle with engine off and parking brake applied. Place transmission gear shift lever (7) in “N” (neutral) position. Rotate drive sprocket (8) until ends of shearpin (6) are visible. Remove two cotter pins (5) from shearpin (6). Discard cotter pins (5). Using drift punch and hammer, drive shearpin (6) from sprocket (8). If shearpin (6) is broken, drive all pieces from sprocket. Discard shearpin (6). d. Installation (Truck, M764). WARNING Be sure the rear winch shearpin is aluminum. Do not substitute any other type metal pin for the shearpin, or injury or death to personnel may result. (1) Coat new shearpin (6) with grease (use grease, GAA, Appendix D, Item 7). (2) Mine shearpin (6) holes in drive sprocket (8) and insert shearpin (6). Tap shearpin (6) until cotter pin holes are visible. (3) Install two new cotter pins (5) in shearpin (6) and bend back pin (5) ends. 3-31 (3-32 blank)