TM10-3930-660-34 7-4 TRANSMISSION ASSEMBLY - REPLACE/REPAIR (Cont’d) w. Press one bearing (79) onto shaft assembly (67) and into weld gear (78).  Remove alignment bars to seat bearing (79) and weld gear (78). x. Install snap ring (77) onto shaft assembly (67). y. Press bearing (76) onto shaft assembly (67). 3.  ASSEMBLE THIRD STAGE CLUTCH PACK (48). a. Install new outer piston seal (103) onto piston (101). b. Install new O-ring (102) on shaft assembly (88). CAUTION Use care when installing piston (101) to prevent damage to O-ring (102) and outer piston seal (103). c. Install     assembled     piston     (101)     into     shaft assembly (88).  Ensure that piston (101) aligns with locating pins in shaft assembly (88). d. Install  thrust  washer  (100),    four  springs  (99) and retainer (97). e. Place shaft assembly (88) in a press.  Install a spring compressor tool. 7-28