Some good points Tom, I really like the quaife reverse but there are cheaper options no
I guessed its only for the cluey with a lathe or right equipment but once sorted
doing more of them or replacing a harley box is cheaper and end of the day sequential.

Some $aving by using a permanent magnet starter motor which are stated as good for most
under 2litres engines, strong planetray gears and can be wired to do the job albeit durability.
Wont be as good but at least its cheap and doesnt add extra weight. Planetary gears are strong.

http://what-when-how.com/automobile/p ... starter-motor-automobile/