Question about differential, Pass roll bar.

[Ronbo]

I'm somewhat bewildered on how exactly the limited slip diff. works in the Kirkham.

The original Jag rear worked like the corvette in that a solid half shaft was required to apply forces to dis-engage the clutch packs to allow one of the wheels to spin at a different rate in a turn. (these were essentially the same carriers used in solid axle rears)

Since the dual A-arm requires a slip type shaft, how is the diff. activated? Or worse is it activated at all? Spools are mighty rough on tires in street cars.

Also even though it's not original I'd like a Passenger roll bar, anyone know of a source for a matching one. (SS) Kirkham should offer this IMHO.

Passengers are people too!!!