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Home >> Chrysler >> 1966 >> New Yorker Automatic Trans >> 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 >> With Pinion Bearing Spacer

With Pinion Bearing Spacer

  1. Install tool parts with pinion bearing cups and bearings into carrier as shown in illustrations for each rear axle model. Tighten nut and rotate tool to seat bearings.
  2. With tool installed in carrier, remove main screw nut, centralizing washer, compression sleeve, and front bearing. Install pinion bearing spacer (large bore next to rear bearing). Install Sleeve SP-1730 in front bearing (sleeve flush with rear of bearing), original preload shims over sleeve, then slide sleeve, bearing, and shims over main screw until shims are against spacer. Install compression sleeve (square end out), centralizing washer, and main screw nut. Turn carrier so nut is up.
  3. Tighten tool nut to 240 ft. lbs. and make a complete revolution of assembly while tightening. Now rotate assembly several turns in both directions to seat bearings, then recheck torque (may have lessened while bearings aligned).
  4. NOTE: Correct bearing preload reading can be obtained only with carrier nose up.

    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. (Shims furnished in.010", 012".014".016".018" thicknesses). Do not remove tool  .

  5. 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 securely. 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.
  6. 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. After proper pinion depth adjusting washer selected, remove tools, bearings, and shims from carrier, then make final bearing assembly.
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