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Home >> Plymouth >> 1967 >> VIP 7.2L Eng >> Repair and Diagnosis >> Drivelines & Axles >> Differentials & Drive Axles >> Rear Axles - CHRYSLER Corp. 8 1/4" & 1965-73 8 3/4" Ring Gear Separate Housing >> Overhaul >> Reassembly & Adjustments >> Without Pinion Bearing Spacer

Without Pinion Bearing Spacer

  1. Install pinion bearings and tool set into carrier as shown in illustrations. Tighten tool nut to 25-50 ft. lbs. Turn tool several revolutions to seat bearings, then check bearing preload which should be 25-50 inch-lbs. (for checking pinion depth only).
  2. With carrier nose down, install Gauge Block SP-528 (or SP-3250) on end of tool main body (flat part of spacer should face differential bearing pedestals) and offset, "or large-part, of spacer toward center of carrier. Install Cross Bore Tube (Arbor) SP-561 on differential bearing pedestals, install bearing caps with.002" feeler between cap and arbor and tighten cap bolts to 10 ft. lbs. Choose a gauge washer which will fit between gauge block and arbor. Fit must be similar to pull of a feeler gauge, that is, snug but not too tight.
  3. To select proper pinion depth adjusting washer, note mark on end of pinion. If mark is minus (-), add  that amount to thickness of gauge washer selected above. If marking is plus (+), subtract  that amount.
  4. After proper pinion depth adjusting washer selected, disassemble tool from carrier and install spacer just selected between spacer SP-2921 and rear bearing. Install Spacer SP-1730 and preload shims originally used, then insert assembly into carrier. Install front bearing, tool spacer, tool thrust washer, and tool nut. Tighten nut to 240 ft. lbs., then turn tool through several revolutions to seat bearings, and recheck torque (may have lessened while bearings aligned). Turn carrier nose up.
    CAUTION: Correct bearing preload reading can be obtained only with carrier nose up.
  5. Install an inch-lb. torque wrench on tool nut with wrench handle floating, and read torque while wrench is moving through at least one full revolution. Reading should be as specified (see "Specifications"), and should be uniform during full rotations. If preload more than specified, use thicker shim under front bearing. If less than specified, use thinner shim. After proper preload shims selected, remove tools, bearings, and shims from carrier, then make final bearing assembly.
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