Differential Carrier Gear Kit – GM8.6BIL

Motive Gear Differential Spider Gear Kit – GM 8.625″ 10-Bolt, 30 Spline – Open Rear Differential

Restore smooth differential operation and replace worn or damaged components with the Motive Gear Spider Gear Kit for GM 8.625” (10-bolt) open rear differentials. This complete carrier gear set includes the spider gears, pinion shaft, thrust washers, and hardware needed to rebuild or service your differential with confidence.

Designed for 30-spline axle shafts, this kit fits a wide range of GM rear-wheel-drive trucks and SUVs from the late 1990s through the 2010s. Whether you’re performing preventative maintenance or repairing a noisy diff, this Motive Gear kit delivers OE-level performance and long-term durability.

✅ Key Features:

• Fitment: For GM 8.625″ (8.6″) 10-bolt open rear differentials
• Axle Shaft Spline Count: 30 spline
• Position: Rear differential
• Kit Includes:
  • 2 spider (side) gears
  • 2 pinion (satellite) gears
  • Pinion shaft
  • Thrust washers
  • Cross pin bolt and hardware
• Differential Type: Open (non-locking)
• Warranty: 1 Year / 50,000 miles
• Construction: Built to OE specs for strength and reliability
• Manufacturer: Motive Gear — a trusted name in drivetrain components

⚙️ Applications:

Fits 1999–2006 GM 1500-series trucks and SUVs equipped with the GM 8.625″ (10-bolt) open rear differential and 30-spline axles.

Common applications include:

• Chevrolet Silverado 1500 (1999–2006)
• GMC Sierra 1500 (1999–2006)
• Chevrolet Tahoe, Suburban 1500 (2000–2006)
• GMC Yukon, Yukon XL 1500 (2000–2006)
• Chevrolet Avalanche 1500 (2002–2006)

⚠️ Not compatible with locking differentials (G80), limited-slip, or later GM axle designs (9.5″, 9.76″, etc.).

Always confirm axle type and spline count before ordering.