recently i had an ac willed to me. Friend says its a model CA. I think its a B. Serial numbers forward of the gear shift are 18071. Engine # left side forward of bell housing are cr28860 ca. I could use some help on this. I drove one as a kid and im sure its a B! We have a 12 pack on this! Thanks

the serial number by the shift lever should contain a "B" or "CA" or "C". The motor should be a CE. if it is a CR i believe it is a replacment in a past life.-------The B is a 3 speed transmission. The steering arm below the gas tank points straight down. The arm on the rod goes to the fron left wheel king pin. ----THe CA is a 4 speed trnasmission. It has a clutch next to the seat on the right rear alxe. Disengage to stop motion, but still have pto with the main clutch engaged. The steering arm on the CA will point up and the arm to the front end connects below the radiator. The CA can be a wide front adjustable axle or a narrow front end. The B is awlays wide, could be adjustable or a wishbone type. THe CA has adjustable rear rims to vary the width.