This gearbox, part number 555721, features a dual ball-bearing, O-ring case with the convenience of a bottom oil drain.
It is specifically designed to work with the Animal M-Series Quarter (1/4) Midget Racing Engine.
"With the growth of the World Formula in Quarter Midget racing we worked over the last year to develop a critical missing link in our product line, a factory offered gearbox" - Stated Dave Klaus, Director - Briggs & Stratton Racing.
