[Ant]

Rick,

I have used drive nuts with two external machined flats, just dont look as nice but who cares, you idea is good.

The Trigo style pin drives will do, they are 3/4" OD so no need to alter them, I think you may have thought I have the 1/2" pin drives as per an original cobra but these are internal hex pins that normally bolt on to a wheel stud to hold an adapter onto a OEM hub!

My PCD is wrong the Compomotives are 4.75" and the new Mustang hubs are 4.5" so we dont have a lot of material left after the larger 4.75" PCD is drilled, thats why I am going 1/2" bolts instead of wheel studs which have a larger diameter under the head!

The front hubs are built like an original one piece hub and I am making locating pins for that along original lines, but as mentioned earlier in a post have the 3/4" diameter for the wheels and go down to a 7/16" (original 3/8") diameter shank etc to hold a brake hat on the inside!

Hope that makes more sense!