Jeff,
Good question!
As I try to describe "bucking" in a three speed '46 tranny it feels like a sudden back and forth banging that "only happens" at low speeds as I go back and forth on the foot pedal. 20 to 30 MPH. Accelerate and everything is OK until you let off the gas and then accelerate again and then something is knocking down there in what seems to be the tranny area. Would I be low on gear oil or is it something else? Like I said, something is "bucking" back and forth.
It's a hard thing to describe in words.
