TM 10-3930-653-14&P (7)   Insert  reduction    gear  shaft  as  shown  in  Fig.  2- 175, and install collar and spiral bevel gear. Fig. 4-363. (8)   Install  tapered  roller  bearing  cup   as   shown   in Fig. 2-176. Fig. 4 -364. (9)   Install shim (0.5 mm or 0.02 in) as shown in Fig. 2-177. Fig. 4-365. (10) Install O-ring on cap. Fig. 4-366. (11) Install cap. Fig. 4-367. (12) Install  tapered  roller  bearing  cone  on  reduction gear. 4-368 4 - 179