Richmond 3.90 Ratio Ring and Pinion 30 Spline Pinion 8.500" Ring Gear 3 Series - GM 12 Bolt Hose Cover gasket seat * Recommended spark

gasket seat * Recommended spark plugs are Champion RC12YC or equivalent 14mm x 3/4" reach with flat gasket seat

This Coil is designed for use with an MSD 7AL-2 (#7220)

16 in Round

and Steel stock car bodies

Richmond 3.90 Ratio Ring and Pinion 30 Spline Pinion 8.500" Ring Gear 3 Series - GM 12 Bolt Hose Cover gasket seat * Recommended sparkProduct Description: Ring and Pinion 3. 90 Ratio 30 Spline Pinion 3 Series Thick Gear 8. 5 in GM 12 Bolt Richmond Gear is famed for their tough and reliable ring and pinion sets. That same level of reliability and precision is available in their other driveline products, including differentials, racing Transmissions, driveshaft components, and more. Racecars around the world rely on Richmond premium gearsets and Transmissions; your hotrod will run