Just built a cub last year It had a distributor fitted I used Electicworld( in the basket case of parts) that fitted on to the outer clutch case which made life difficult to time the spark because when you put the case on you cannot see the timing marks The other crank case I bought have the pegs fitted and behind the clutch mod The units I fitted came off another cub and are 14" Rear subframe had mods done before I got it and has pins at the top mount