Richmond Excel Ring and Pinion - 3.42 Ratio - 30 Spline Pinion - 3 Series - 8.5 in / 8.6 in - GM 10-Bolt 7809A Coolers have a 1/2"NPT female

Coolers have a 1/2"NPT female bung commonly used for connecting a temperature sending unit or similar accessories and have built in flanges for mounting to the deck underside of most Dirt Late Models

Dirt system is short on both left and right sides

All shields are SFI 4

This regulator features Aeromotive's high-flow design

Richmond Excel Ring and Pinion - 3.42 Ratio - 30 Spline Pinion - 3 Series - 8.5 in / 8.6 in - GM 10-Bolt 7809A Coolers have a 1/2"NPT femaleEXCel drivetrain products are engineered to exceed OEM specifications by manufacturing to precise specifications in world class factories, using the latest heat treatment technology, with extensive quality controls throughout. Richmond Gears EXCel drivetrain products offer high quality OEM replacement drivetrain products for your vehicle. Richmond Gears EXCel line of ring &amp pinon gearsets provide Richmond quality at affordable prices. All EXCel