
PEM Premium Lightweight Quick Change Gear Set #21A - No. Teeth 21/21
4.11 Ring & Pinion - 6.30 Ratio
4.86 Ring & Pinion - 7.45 Ratio
• High strength alloy steel for higher horsepower cars
• Ligthweight drilled gears decrease rotating weight
• REM finished for less friction, run cooler temperatures, and have longer life
• 10 spline gears fit PEM, Winters, Frankland, Bulldog (DMI), Tiger, and other popular quick change rear ends