I would love to find an OEM Dana 70 Power Lok for my 1993 W250.

I agree with Gus, all of the Dana and 8.75 power loks I have done hade uncoate steels and black coated Bellevue springs. I usually add .100 to the shim pack reusing the original thin shim.

https://www.doctordiff.com/powr-lok-clutch-pack.html.

I'd be interested in seeing pictures if you have a different style clutch pack.