Question on 8 lug aluminum slot rims..

[Ken B]

I picked up a real nice set of vintage aluminum 8 lug slot rims with brand new BF Goodrich tires on them at the flea market this past weekend for 100 bucks. The seller said they were off a Chevy 4x4. Will I be able too use these on my 70 2wd C30? I believe my studs are 1/2x20 and the one lug that came with the rims has a larger thread size. When I went to get new lugs all the parts guy had were lugs that had a smaller outside diameter than the one lug that came with these rims that fit perfectly thru the lug holes... I don't want any wobbles etc... Is there any way for me to get around this? Thanks for any help!