TM 10-3930-653-14&P WARNING Exercise care when removing snap rings. (23)  Install snap ring on the pipe. (26)  Install reverse idle gear in transmission case. Fig. 4-380. Fig. 4-383. (24) Install O-ring on strainer flange section. (27) Install clutch pack in transmission case. Fig. 4-381. Fig. 4-384. (25) Install ball bearing on reverse idle gear. (28) -Put packing on transmission case. Fig 4-382. Fig 4-385. 4 - 183