5x5 vs 4x3/4
 

I have a 66 catalina, 5x5 lug spacing. Are there any stock set up of 4x3/4 hubs I can put on the car w/o a big modifiy. the market for 5x5 rims are very nill

I think you mean 5x43/4. If so I don't think you will find anything. Besides they will most likely have a smaller 7/16 stud compared to the 1/2 stud on your car. Not a good idea to go smaller on bolt pattern and stud size.

Yeah thats what I mean I want to go down to a 5 x 4 3/4 lug spacing