• Revolutionary new patented design • Lowest rotating weight of any transmission on the market today • Lightweight internal clutch eliminates the need for any external clutch assembly • Direct replacement for Muncie or Borg Warner transmissions • Gun-drilled input and output shafts for weight reduction • No plastic parts or chains to fix or replace • Reverse utilizes existing gear train. No internal chains or belts • Lightweight at only 45 lbs. • SAE 10 tooth input shaft spline • Six-inch long, 27-tooth output shaft spline will accept any length yoke • Low gear ratio: 2.68.1 • Reverse gear ratio: 1.78.1 • Minimal maintenance required • Shifter Required • Use with Brinn Shifter Assembly part number 70630 • WARNING!! Use only RT-1 transmission fluid in the Predator The Brinn is a far superior transmission to the competitors." -Ron Alexander, Ron's Transmission "I have two Brinns and would never ever even think of running anything else! Thank you for such a great product that I depend on so much each race!"-Kevin Fitzgerald