Rear Brake clearance questions on 15x 8.5's

[ronwest]

HI Guys

I have a 69 Charger and I'm looking to put Wilwood discs on the rears. Here the low down...

They need 14.25" of clearance, and I'm running 15x8.5 american racing vectors.
Do you think I'll be ok? I just haven't had time to pull the wheel and check.... figured someone here may know. 

Also they need to know the offset, I see Summit sells for the 69 B body model only 2.36 offsets... sound right? Wilwood told me 2-3/8 or 2-1/2. And are the stock studs 1/2" or 7/16"?

Thanks in advance

[greenpigs]

The studs are 1/2 and thats about all the help I can give.