Richmond Ring & Pinion Set - 3.90 Ratio, 39-10 Teeth, GM 12 Bolt H76903F Efficient copper/aluminum 4 & 4

Efficient copper/aluminum 4 & 4 pass cooler core

This kit is not engineered to fit vehicles with a body lift

1959-1974 Dodge W300 Pickup

We also offer both gas and diesel truck systems for the most popular American Pick-Up Trucks

1986-1991 Mercedes-Benz 560SEC

Richmond Ring & Pinion Set - 3.90 Ratio, 39-10 Teeth, GM 12 Bolt H76903F Efficient copper/aluminum 4 & 4RICHMOND 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! GM 12 Bolt Installation Notes: When replacing a 2. 73 3. 90 ratio with a Richmond Hi Performance Ring & Pinion, the carrier must be replaced with a carrier from a stock 4. 10, 4. 56 or 4. 88 ratio. When installing 5. 14 to 6. 14 ring & pinion sets,