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USA Standard Gear Master Overhaul Kit for GM 8.6 Diff

USA Standard Gear ★ 4.1/5 · ItemOracle Score Mid-Range

$140 USD
Price subject to change
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USA Standard Gear (ZK GM8.6-B) Master Overhaul Kit for GM 8.6 Differential

Overhaul kit with Koyo bearings and races, carrier and pinion components, seal, and shim kit. Provides complete parts for GM 8.6 differential rebuild; customers note comprehensive contents but mixed fit reports

Highlights

  • Koyo bearings and races included
  • Complete shim kit included
  • Carrier and pinion bearings/races included

Pros

  • Koyo bearings and races included
  • Comprehensive carrier and pinion components
  • Includes pinion seal and shim kit
  • Reported good value for money

Cons

  • Mixed fit reports for some vehicles
  • Some customers report missing inner axle seals
  • Shim quantity may be insufficient per some reviews

Best For

  • rear differential overhaul on GM 8.6
  • replacement kit during brake/axle service
  • restore differential function on 1978 GMC 4x4 models
  • gear backlash and shim setup during rebuild
  • carrier and pinion bearing replacement
  • seal and race replacement during differential service

Features

  • Includes carrier bearings and races for GM 8.6 differential
  • Koyo bearings and races provided for bearings pair
  • Pinion bearings, races, and seal included in kit
  • Complete shim kit with ring gear bolts and pinion nut
  • Crush sleeve and oil baffles/slingers included if applicable

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