Selectable Auto hub repair

[canuck]

Hoping someone here can answer a couple questions for me. I pulled the hub off my other Safari (Y60) to slap some paint on it and found that in the clutch mechanism that what I think is a spacer ring had snapped. At least it appears to function as a spacer.
http://i252.photobucket.com/albums/hh33 ... 1257999381

Also inside the hub casing there are 2 metal tabs which had also had the ends snapped off them. You can see them in the left of the pic here.
http://i252.photobucket.com/albums/hh33 ... 1258000002

And also how they are supposed to sit inside the hub casing here.
http://i252.photobucket.com/albums/hh33 ... 1257999779

The good news was there was so much grease in there, the metal bits had no chance of working their way back in the hub to cause more damage.

I have a retired machinist making me up some new spacer rings (based on the one which isn't broken but is cracked) and some new tabs. He told me both items were spring steel (hardened). He doesn't have the equiptment to turn spring steel, so I will have to heat them up and oil bath them to harden. Anyone have an idea on how much I should harden them: one, two or more oil baths?

Second question, neither my FSM or my Haynes manual has anything on this type of hub. The Haynes is useless and the FSM only has a pick of a auto fully auto hub or a selectable locking hub. Anyone have a decent diagram or pic? I need to have a good idea on the shape of the ends of the metal tabs as I will have to do them myself and don't have one good one to model it after.

Cheers, John