Ratech Complete Differential Install Kit — Fits 1998-Up GM 8.5/8.625 Rear Ends

SKU: BHLZ_360K
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Sale price$123.99
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About Ratech

Ratech engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Ratech lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Precision Drivetrain Performance

Ensure your GM 8.5 or 8.625-inch rear end operates at peak efficiency with the Ratech Complete Differential Installation Kit. Designed specifically for 1998 and newer GM 10-bolt applications, this comprehensive kit provides all the essential components required for a professional-grade ring and pinion gear swap. Whether you are building a high-performance street machine or a dedicated track vehicle, using high-quality hardware is critical to preventing premature gear wear and drivetrain failure.

What is Included in the Kit?

  • High-grade differential bearings for smooth rotation
  • Precision-engineered crush sleeve and hardware
  • Durable gaskets and oil seals to prevent leaks
  • Comprehensive shim kit for perfect gear pattern adjustment
  • Professional-grade marking compound for backlash verification

Each component in this Ratech kit is manufactured to meet or exceed OEM specifications, ensuring a perfect fit and long-lasting reliability under heavy load conditions. By replacing your worn-out internals during a gear upgrade, you eliminate unnecessary noise, vibration, and heat buildup within the differential housing. This kit takes the guesswork out of your rebuild, allowing for precise setup and consistent power delivery to the wheels. Trust the experts at GGCRACING to provide the high-performance drivetrain components you need to get back on the road with confidence.

Product Details

Product Description
Part Numbers
Sizing & Fit

About Ratech

Ratech engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Ratech lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Precision Drivetrain Performance

Ensure your GM 8.5 or 8.625-inch rear end operates at peak efficiency with the Ratech Complete Differential Installation Kit. Designed specifically for 1998 and newer GM 10-bolt applications, this comprehensive kit provides all the essential components required for a professional-grade ring and pinion gear swap. Whether you are building a high-performance street machine or a dedicated track vehicle, using high-quality hardware is critical to preventing premature gear wear and drivetrain failure.

What is Included in the Kit?

  • High-grade differential bearings for smooth rotation
  • Precision-engineered crush sleeve and hardware
  • Durable gaskets and oil seals to prevent leaks
  • Comprehensive shim kit for perfect gear pattern adjustment
  • Professional-grade marking compound for backlash verification

Each component in this Ratech kit is manufactured to meet or exceed OEM specifications, ensuring a perfect fit and long-lasting reliability under heavy load conditions. By replacing your worn-out internals during a gear upgrade, you eliminate unnecessary noise, vibration, and heat buildup within the differential housing. This kit takes the guesswork out of your rebuild, allowing for precise setup and consistent power delivery to the wheels. Trust the experts at GGCRACING to provide the high-performance drivetrain components you need to get back on the road with confidence.

Product Details

Product Description

About Ratech

Ratech engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Ratech lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Precision Drivetrain Performance

Ensure your GM 8.5 or 8.625-inch rear end operates at peak efficiency with the Ratech Complete Differential Installation Kit. Designed specifically for 1998 and newer GM 10-bolt applications, this comprehensive kit provides all the essential components required for a professional-grade ring and pinion gear swap. Whether you are building a high-performance street machine or a dedicated track vehicle, using high-quality hardware is critical to preventing premature gear wear and drivetrain failure.

What is Included in the Kit?

  • High-grade differential bearings for smooth rotation
  • Precision-engineered crush sleeve and hardware
  • Durable gaskets and oil seals to prevent leaks
  • Comprehensive shim kit for perfect gear pattern adjustment
  • Professional-grade marking compound for backlash verification

Each component in this Ratech kit is manufactured to meet or exceed OEM specifications, ensuring a perfect fit and long-lasting reliability under heavy load conditions. By replacing your worn-out internals during a gear upgrade, you eliminate unnecessary noise, vibration, and heat buildup within the differential housing. This kit takes the guesswork out of your rebuild, allowing for precise setup and consistent power delivery to the wheels. Trust the experts at GGCRACING to provide the high-performance drivetrain components you need to get back on the road with confidence.

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