Yukon Master Overhaul Kit for GM 8.5" 31-spline Diff

Yukon Gear & Axle ★ 3.7/5 · ItemOracle Score Premium

$363 USD
Price subject to change
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Yukon Gear & Axle (YK GM8.5OLDS-31) Master Overhaul Kit for GM Oldsmobile 442/Cutlass 8.5" Differential with 31 Spline

Comprehensive overhaul kit with Timken bearings, races, seals, and small parts for GM Oldsmobile 442/Cutlass 8.5" differential. Includes carrier and pinion bearings/races and seals. Customer feedback notes high quality components but occasional missing parts and fit variability

Highlights

  • timken bearings and races included
  • comprehensive kit with essential parts
  • tailor-made kit options for installations

Pros

  • Timken bearings and races included
  • All-in-one kit with carrier and pinion components
  • High-quality seals and small parts
  • Tailor-made kit variety for specific installations

Cons

  • Mixed feedback on completeness
  • Some reports of fit not matching vehicles
  • Shim kit and crush sleeve availability varied

Best For

  • differential overhaul
  • bearing and seal replacement
  • carrier and pinion assembly servicing
  • diff maintenance for GM 8.5"
  • timken-bearing-based rebuild

Features

  • Includes carrier bearings and races for GM Oldsmobile 442/Cutlass 8.5" differential
  • Timken bearings and races, plus high-quality seals and small parts
  • Contains pinion bearings and races with pinion seal and crush sleeve (if applicable)
  • Complete shim kit, ring gear bolts, and pinion nut for installation
  • Tailored overhaul kit designed to cover key differential service needs

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