Bert Transmission Piston - 1-3/8" 931075 GM A-Body 1973-77

GM A-Body 1973-77

Cover with drawstring fits both shielded and non-shielded breathers

and installation of engine/transmission into almost any chassis

replaceable steering arm and brake caliper bracket

1968-1977 Pontiac Catalina

Bert Transmission Piston - 1-3/8" 931075 GM A-Body 1973-77Transmission Piston, 1 3 8 in OD, Aluminum, Natural, Bert Transmissions. Genuine Bert replacement part. 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