Differential Assembly: Reassembly
- Install original shim onto retainer. Using Race Installer (09351-32111) and press, install outer race. Lubricate oil seal lip. Using Seal Installer (09351-32150) and handle, install oil seals until oil seal surface is flush with surface of transaxle case or bearing retainer.
- Select thrust washers that will ensure correct side gear backlash. Thrust washers are available in thicknesses of .037-.047" (.95-1.20 mm) in .20" (5.0 mm) increments. Install thrust washers and side gears in differential case. If possible, install same size thrust washers on both sides. Install pinion gears and pinion shaft. Check side gear backlash to ensure proper thrust washers are used.
- Once backlash is correct, using hammer and punch, drive lock pin through differential case and into pinion shaft. Stake differential case to retain lock pin. Install speedometer drive gear onto differential case. Using Adapters (09351-32090 and 09351-32180) and press, install side bearings onto differential case.
- Clean ring gear contact surface of differential case. Heat ring gear to 212°F (100°C) in an oil bath. DO NOT heat ring gear above 230°F (110 °C). Clean contact surface of ring gear using cleaning solvent. Align ring gear with differential case. Install ring gear on differential case.
- Install NEW locking plates and bolts. Tighten bolts evenly and in several steps to 72 ft. lbs. (97 N.m) for A-131L transaxle and 91 ft. lbs. (124 N.m) for A-132L transaxle. Stake lock plates. Stake one tab flush with flat surface of bolt. Stake 2nd tab against corner of bolt.
- Install outer race and original adjusting shim on right side bearing. Remove differential drive pinion. See DIFFERENTIAL DRIVE PINION ASSEMBLY . Install differential in transaxle case. Install left bearing outer race, shim and retainer without "O" ring. Snug bolts evenly and gradually while turning ring gear. Tighten bolts to 14 ft. lbs. (19 N.m). Install right side bearing cap. Snug bolts evenly and gradually while turning ring gear. Tighten bolts to 36 ft. lbs. (49 N.m).
- Using Differential Preload Adapter (09564-32011) and an INCH lb. torque wrench, measure differential bearing preload with differential drive pinion removed. See Fig 1. Preload must be within specifications. See DIFFERENTIAL PRELOAD SPECIFICATIONS table. If pre-load is not within specifications, remove differential from transaxle case and replace adjustment shim at right side bearing with appropriate shim.
- Adjustment shims are available in thicknesses of 063-.083" (1.60-2.10 mm) in .20" (5.0 mm) increments. Preload will change approximately 2.6-3.5 INCH lbs. (.3-.4 N.m) with each shim thickness.DIFFERENTIAL PRELOAD SPECIFICATIONS
Application INCH Lbs. (N.m) New Bearings 9-14 (1.0-1.6) Used Bearings 4-7 (.5-.8) - If preload is within specification, remove left bearing retainer. DO NOT lose selected adjustment shim. Install "O" ring on left bearing retainer. Remove right side bearing cap bolts and coat threads with sealant. Tighten bolts evenly and gradually to 36 ft. lbs. (49 N.m), while turning ring gear.
- With drive pinion installed in case, measure total preload using procedure used during disassembly. Starting preload should be drive pinion preload of 4-7 INCH lbs. (.5-.8 N.m) plus 3-4 INCH lbs. (.3-.4 N.m) for NEW bearings or 1-2 INCH lbs. (.1-.2 N.m) for used bearings.
- If total preload is not within specification, disassemble differential and readjust. If total preload is correct, stake counter-driven gear lock nut. Install drive pinion cap. Coat carrier cover bolt threads with sealant. Install carrier cover and gasket. Install bolts and tighten to 18 ft. lbs. (25 N.m). To complete reassembly, reverse disassembly procedure. Tighten all bolts to specification. See Fig 2.