Richmond Ring & Pinion Set - 3.90 Ratio, 39-10 Teeth, GM 12 Bolt H76903F Perfect for upgrading carburetion fuel

Perfect for upgrading carburetion fuel systems

Complements Edelbrock's new 351C performance RPM cylinder heads

1986-1991 Mercedes-Benz 560SEC

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

EGT Input Channel Independently or Combine Readings

Richmond Ring & Pinion Set - 3.90 Ratio, 39-10 Teeth, GM 12 Bolt H76903F Perfect for upgrading carburetion fuelRICHMOND 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,