n. Rear Output Shaft Rear Bearing Retainer. NOTE During assembly, tighten the rear output shaft rear bearing retainer capscrews to 60- 77 lb-ft torque. Use shims to obtain 0.002- to 0.005-inch end play. The shims are provided as a set. The part number for the set is 7521437. The part numbers and shim sizes are: Ordnance No. Thickness 7521277 .003 ± .001 7521278 .005 ± .001 7521279 .010 ± .001 Remove the six capscrews and lockwashers securing the rear output shaft rear bearing retainer to the transfer case. (See fig. 4-12.) Remove bearing retainer and shims from the rear output shaft bearing retainer. o. Input Shaft Rear Bearing Cover. NOTE During assembly, install a new gasket. Tighten capscrews to 60-77 lb-ft torque. Remove the six capscrews and lockwashers securing the input shaft rear bearing cover to the transfer case. (See fig. 4-12.) Remove rear bearing cover and gasket; discard the gasket. shaft plug (fig. 12) from PTO TM 9-2520-246-34 4-11). Remove valve assembly (fig. 4- flange. NOTE On assembly, install the valve with spring toward inside of case. 4-6. a. Disassembly of Subassemblies. Rear Output Shaft Disassembly and Assembly. p. Shifter Fork, Input Shaft Assembly and Countershaft Assembly. Using a soft pin and hammer, drive the input shaft loose. (See fig. 4-13.) Then lift the input shaft assembly, synchronizer assembly, fork assembly, and countershaft assembly from the transfer case. q. Transfer Case Shifter Shaft Plug and Valve Assembly. Using a suitable tool, remove the shifter b. NOTE Before pressing the gear and bearings on rear output shaft, coat shaft with white lead pigment, Fed Spec TT-W-261C. When assembling the rear output shaft assembly, install the parts separately, so as not to damage front and rear bearings. (1) Place rear output shaft assembly (fig. 4-14) in an arbor press with front tapered roller bearing cone up. Place support bars beneath the cone. Press shaft from cone. (2) Place rear output shaft assembly (fig. 4-14) in an arbor press with the rear output shaft driven gear up. Place support bars beneath the rear output shaft driven gear and press shaft free of the gear. Removal of the rear output shaft driven gear in this manner will also push the rear output shaft rear bearing from the shaft. Remove the woodruff key from the shaft. Figure 4-13. Shifter Fork, Input Shaft, and Countershaft. Figure 4-14. Rear Output Shaft Disassembly — Exploded View. Countershaft Disassembly and Assembly. NOTE Before pressing the gears and bearings on countershaft, coat shaft with white lead pigment, Fed Spec TT-W-261C. When assembling the countershaft assembly, install parts separately so as not to damage front and rear bearings. Discard old capscrew locking plates and replace with new. 4-7