[Cobra #3170]

I just finished a 1 hour wrestling match with alternator mount, so far alternator is winning. Power steering pump and expansion tank are next.

Original Magnesium Cobra FIA Wheel:

Rim width 8 5/8"
Overall width of wheel 9 7/8"
Hub flat to hub flat 2 7/8"
Back space out side of rim to inner hub flat 3 1/2"

Looking at this I imagine you could put these wheels on a custom mandrill
and machine .1875 off each bead and get some legal 9" wheels maybe that is what they did back in the day. Bead seats are quite thick.