This, doesn't look right.
Decided to not chance it and just make the repair on the trailer:
Wheel holes are wallered out, brake rotor holes are too, and the centering register on the axle is ****ed. So I will be replacing all of them. Caliper took a little rubbing from the rotor but looks mostly cosmetic.
Strange was so kind to drill both 12mm and 1/2" stud holes. I will be going back with 1/2" this go round to see if I can stop this **** from happening again.
Here's the passenger side wheel studs.....whoops.
So I waited about a week for new 1/2 studs and a brake rotor from Strange. I didn't get in a hurry to get it fixed due to I'm still waiting on a wheel. I went ahead and patched it together yesterday and put the stock wheels back on the rear to get it off the trailer.
This is the damage to the caliper where the rotor rubbed the inside of it. Looks like i stopped in time and didnt do major damage to the caliper.
Here's the new 1/2 studs after installation.
Here's the complete assembly with the new center register and rotor. You can see from this picture the rotor is stud-centric meaning it depends on the studs to center itself. Common sense tells you if it fits with 1/2 studs and 12mm are smaller, then there was some slack with the 12mm. Enough to cause an issue? Well I cant say for sure but I do believe these were designed to work best with 1/2 because the fit is much tighter. Strange should mention this detail in their product literature I think.
I'm making a lug nut swap also. I'm including this picture for those who may not be familiar. Stock wheels use a hex nut conical seat on the top left. Drag wheels use something like the mag type hex nut with a washer. That type goes through the wheel to grip the stud all the way at the base making it stronger. Even with stock wheels you can use the hex nut ET (extended thread) and it gives a similar effect of the mag type where it actually passes through the wheel and engages more thread and in to a further point.