TM 10-3930-669-34 10-4. DIFFERENTIAL REPAIR (CONT). NOTE The number of shims to install will be those selected to equal Distance C,  ±0.004- 0.005 in. (±0.10-0.12 mm), in Step (22). (24) Position spacer (34), shims (33), and pinion shaft cover (28) on pinion shaft (24). (25) Apply sealing compound to ring nut (29). (26) Using spanner wrench, spanner wrench, and torque wrench, install bearing (30) and ring nut (29) on pinion shaft (24).  Tighten ring nut to 443 to 516 lb-ft (600-700 N•m). NOTE • A   rotation   torque   test   will   be performed  prior  to  installing  the seal.    The  rotation  torque  should be 89 to 125 lb-ft (120-170 N•m). • Attach pinion shaft cover to work surface    to    prevent    movement during rotation torque test. (27) Using    a     torque     wrench     and     spanner wrench   on   ring   nut   (29),   measure   the rotation torque required to turn pinion shaft (24). 10-24