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⚙️ Upgrade your GM 8.6 differential with confidence—master the road, master the kit!
The USA Standard Gear ZK GM8.6-B Master Overhaul Kit is a comprehensive, precision-engineered solution for GM 8.6 differentials. Featuring premium Koyo bearings and races, a full complement of carrier and pinion components, and OEM-exceeding quality control, this Japanese-made kit ensures a reliable, durable rebuild that professionals trust.








| Manufacturer | USA Standard Gear |
| Brand | USA Standard Gear |
| Model | Master Overhaul Kit for GM 8.6 Differential |
| Item Weight | 7.34 pounds |
| Product Dimensions | 12 x 13 x 3 inches |
| Country of Origin | Japan |
| Item model number | ZK GM8.6-B |
| Exterior | Machined |
| Manufacturer Part Number | ZK GM8.6-B |
| OEM Part Number | ZKGM8.6B |
| Special Features | This kit uses Koyo bearings and races, Included are carrier bearings and races, pinion bearings and races, pinion seal, complete shim kit, ring gear bolts, pinion nut, crush sleeve (if applicable), oil baffles and slingers (if applicable), USA Standard Master Overhaul kits let you finish your install with confidence |
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