 6-bangertim
"2nd Year" Silver Supporting Member
Posts: 1864
Age: 55
Loc: El Cajon, Calif.
Reg: 11-30-08
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07-18-12 10:12 AM - Post#2249492
In response to lschmidt
I'm thinking that the new wheels were made to METRIC specs and don't quite fit over the 7/16 studs - are the lug nuts 3/4" on the rotors?
If the new wheels use tapered seats for the lugs, you might drill them out with a 29/64 drill. With SQUARE seats, you might have to send them back and get another set drilled to a early Chevelle rotor.
Another option might be to replace the 7/16 studs with later metric studs. "Borrow" a new rotor and compare it to your '55 rotors.
I'd talk to the wheel mfg. FIRST - could be they shipped the WRONG wheels for the car. 
Good Luck, Tim
Too Poor to Restore...My Nifty 150!
Proud owner of MISS NOVEMBER - 2011 Tri-Five Calender
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drtyler (4)
