Richmond Gear Ring & Pinion Lightweight Quick Change 4.12 Ratio — 12-Bolt Kit

SKU: BCLJ_59-0006-L
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About Richmond Gear Richmond Gear engineers high-quality automotive parts and ...Read More

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Sale price$321.29
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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 Richmond Gear

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

Lightweight Ring & Pinion Performance

Upgrade your rear-end assembly with the Richmond Gear Lightweight Ring & Pinion Kit. Featuring a 4.12 ratio, this kit is specifically designed for 12-bolt quick-change differentials. By utilizing lightweight materials without sacrificing structural integrity, this ring and pinion set reduces rotating mass, allowing for quicker throttle response and improved acceleration off the corners.

Performance Features

  • Lightweight Design: Engineered to reduce unsprung weight for better handling.
  • 10-Spline Pinion: Designed for seamless integration with standard racing setups.
  • 12-Bolt Compatibility: Perfect fitment for 12-bolt quick-change rear ends.
  • High-Strength Steel: Precision-cut for maximum torque capacity and longevity.

This kit is the ideal choice for racers looking to shave seconds off their lap times. Richmond Gear is synonymous with quality in the racing world, and this lightweight set is no exception. The 4.12 ratio provides an excellent balance of acceleration and versatility, making it suitable for a wide variety of track configurations. Each component is heat-treated to ensure it can withstand the extreme stresses of competitive racing. Proper setup and break-in procedures are essential to ensure the longevity of your new ring and pinion. When you need reliable, high-performance drivetrain components, look no further than the selection at GGCRACING.

Product Details

Product Description
Part Numbers
Sizing & Fit

About Richmond Gear

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

Lightweight Ring & Pinion Performance

Upgrade your rear-end assembly with the Richmond Gear Lightweight Ring & Pinion Kit. Featuring a 4.12 ratio, this kit is specifically designed for 12-bolt quick-change differentials. By utilizing lightweight materials without sacrificing structural integrity, this ring and pinion set reduces rotating mass, allowing for quicker throttle response and improved acceleration off the corners.

Performance Features

  • Lightweight Design: Engineered to reduce unsprung weight for better handling.
  • 10-Spline Pinion: Designed for seamless integration with standard racing setups.
  • 12-Bolt Compatibility: Perfect fitment for 12-bolt quick-change rear ends.
  • High-Strength Steel: Precision-cut for maximum torque capacity and longevity.

This kit is the ideal choice for racers looking to shave seconds off their lap times. Richmond Gear is synonymous with quality in the racing world, and this lightweight set is no exception. The 4.12 ratio provides an excellent balance of acceleration and versatility, making it suitable for a wide variety of track configurations. Each component is heat-treated to ensure it can withstand the extreme stresses of competitive racing. Proper setup and break-in procedures are essential to ensure the longevity of your new ring and pinion. When you need reliable, high-performance drivetrain components, look no further than the selection at GGCRACING.

Product Details

Product Description

About Richmond Gear

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

Lightweight Ring & Pinion Performance

Upgrade your rear-end assembly with the Richmond Gear Lightweight Ring & Pinion Kit. Featuring a 4.12 ratio, this kit is specifically designed for 12-bolt quick-change differentials. By utilizing lightweight materials without sacrificing structural integrity, this ring and pinion set reduces rotating mass, allowing for quicker throttle response and improved acceleration off the corners.

Performance Features

  • Lightweight Design: Engineered to reduce unsprung weight for better handling.
  • 10-Spline Pinion: Designed for seamless integration with standard racing setups.
  • 12-Bolt Compatibility: Perfect fitment for 12-bolt quick-change rear ends.
  • High-Strength Steel: Precision-cut for maximum torque capacity and longevity.

This kit is the ideal choice for racers looking to shave seconds off their lap times. Richmond Gear is synonymous with quality in the racing world, and this lightweight set is no exception. The 4.12 ratio provides an excellent balance of acceleration and versatility, making it suitable for a wide variety of track configurations. Each component is heat-treated to ensure it can withstand the extreme stresses of competitive racing. Proper setup and break-in procedures are essential to ensure the longevity of your new ring and pinion. When you need reliable, high-performance drivetrain components, look no further than the selection at GGCRACING.

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