locking diffs

[ScottieJ]

yeah that defo sounds like fiddle brakes, you can kind of use them as a difflock! if you lift a wheel whilst off roading you can lock the wheel that is in the air thus forcing all the drive over to the wheel that is on the ground.

[firemansam]

http://www.ox-usa.com/ox/Products/Locke ... fault.aspx

ox lockers might be what youre thinking?

unfortunately they dont make one for a sammy axle. If you changed your axle, though, you could fit one relatively easily