TM 9-2520-246-34 Figure 3-45. Removal of First and Reverse Shifter Shaft Oil Seal. c. Wainshaft. CAUTION Do not press directly on the flange of the sleeve. Use a short piece of pipe or tubing and press on end of sleeve. Direct pressure on the flange of the sleeve may damage it. (1) Slide the second speed gear on the mainshaft. Coat the second- and third-speed synchronizer sleeve bore and mainshaft with a light coating of grease, artillery and automotive (GAA), MIL-L-10924. Start the sleeve on the mainshaft. Place into the press, face down, between two parallel bars. Press sleeve into position and secure it using a new snapring. See figure 3-37 for positioning of the second- and third-speed synchronizer. (2) Coat the fourth-speed gear sleeve and mainshaft with white lead, Fed Spec TT-W-261C. Make an opening in the adapter puller large enough to slip through. Position the third-speed gear and fourth-speed gear sleeve to main drive shaft and press into place. See figure 3-35 for the correct positioning of third-speed gear and fourth-speed gear sleeve. (3) Install mainshaft fourth-speed gear and thrust washer. Secure in place using a new snapring. NOTE Be sure snapring is fully seated mainshaft groove. d. Mainshaft Rear Bearing Cap. (1) Press seal into place using a and a press. (2) See fig. 3-22 for positioning in the block of wood of seal. e. Input Shaft. (1) Place the input shaft ball bearing on the input shaft. Place the input shaft between two parallel blocks, spline downward. Using an arbor press, press the input shaft ball bearing onto the shaft. Secure bearing to input shaft using a new snapring. See fig. 3-33 for positioning of bearing and snapring. NOTE Coat the input shaft and ball bearing bore with white lead pigment, Fed Spec TT-W- 261C, before pressing the ball bearing assembly on the shaft. (2) Coat the input shaft roller bearing bore with a light coating of grease, artillery and automotive (GAA), MIL-G-10924. Install the input shaft roller bearings. Insert the last roller bearing endwise into the bearing assembly. (See para 3-9 note.) 3-11. Assembly. a. Install countershaft front bearing and washer. (See fig. 3-32.) b. Install new countershaft front bearing retainer. (See fig. 3-32.) c. Install countershaft d. Install countershaft snapring. e. Install countershaft assembly. (See fig. 3-31.) rear bearing (fig. 3-30) and rear bearing retaining nut. Tighten nut to 120-150 lb-ft torque. Secure nut to mainshaft using a new cotter pin (fig. 3-30). NOTE After applying torque, tighten nut to closest cotter pin hole. Figure 3-46. Removal of Lower Shift Lever, Lever Spring, and Spring Cap. 3-19