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Positive Traction Differentials: Overhaul: Disassembly: Notes

  1. On all designs, with ring gear removed, remove pinion shaft lock bolt or snap rings. Using a punch, drive pinion shaft out of case.
  2. On Eaton and G.M. designs, remove preload spring assembly. When removing spring assembly on Eaton design, insert 2 bolts through spring plates and tighten enough to enable removal of spring assembly. See Figure. Rotate 1 side gear to roll pinion gears to an opening where they can be removed. Remove side gear and clutch pack assemblies, noting which end of case each assembly is installed in.
  3. On Dana design differentials, install clutch pack compressor/side gear rotator tool (GM J-23781) and compress clutch pack. See Figure. Push pinion thrust washers out from behind pinion gears with 0.020" shim stock or similar tool. Using rotating tool, turn side and pinion gears until pinion gears can be removed. Remove side gear and clutch pack assembly, noting which end of case each assembly is located in.
    NOTE: Keep clutch discs and plates in original sequence when reusing.
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