Bert Sun Gear Selector Trailing Arm Aluminum frame features a built-in

Aluminum frame features a built-in front oil pan gasket retainer and an idler gear cradle for accurate cam timing throughout the RPM range

an elastic enclosure

Both versions are made to meet the same tolerance as the original

Rotor measures 10-1/8" O

Bert Sun Gear Selector Trailing Arm Aluminum frame features a built-inProduct Description: Sun Gear Selector Steel Natural Bert Second Generation Transmissions Sold Individually Thousands of races have been have been won with Bert Transmissions. Bert Transmissions feature dog tooth final drive for butter smooth shifts and positive engagement. By significantly reducing drive line bind, the Bert Ballspline Transmission allows the rear suspension to move faster and smoother, greatly improving traction on todayas dry, slick