Ford 9" Street Diff Gear Set 3.89
Product Information
Richmond is the leading manufacturer of professional quality, hi-performance ring and pinion sets.
For over 80 years, the Double Diamond has signified the highest quality gears in the racing industry! The superior quality of Richmond Performance Products is a result of continual research and development, outstanding design and state-of-the-art manufacturing. Extensive testing is performed on all Richmond products. Engineered to perform faster and more reliable, their products have been winners both at the Daytona 500 and U.S. Nationals for decades!
- Ring and Pinion Ratio 3.89:1
- Cover Bolts 10
- Pinion Spline Count 28
- Carrier Series 4
- Ring Gear Rotation Standard
- Ring Gear Teeth 35
- Pinion Gear Teeth 9
- Ring Gear Diameter (in) 9 in.
- Pinion Shaft Diameter (in) 1.313 in.
- Installation Kit Included No
- Quantity Sold as a set.

Product Information
Richmond is the leading manufacturer of professional quality, hi-performance ring and pinion sets.
For over 80 years, the Double Diamond has signified the highest quality gears in the racing industry! The superior quality of Richmond Performance Products is a result of continual research and development, outstanding design and state-of-the-art manufacturing. Extensive testing is performed on all Richmond products. Engineered to perform faster and more reliable, their products have been winners both at the Daytona 500 and U.S. Nationals for decades!
- Ring and Pinion Ratio 3.89:1
- Cover Bolts 10
- Pinion Spline Count 28
- Carrier Series 4
- Ring Gear Rotation Standard
- Ring Gear Teeth 35
- Pinion Gear Teeth 9
- Ring Gear Diameter (in) 9 in.
- Pinion Shaft Diameter (in) 1.313 in.
- Installation Kit Included No
- Quantity Sold as a set.