Ok I finally made my mind up. Im going to run weld prostars. I want to run skinnys in the front and some nice fat slicks in the back. I was doing some reading and correct me if Im wrong but for the front I need a 15x3.5 with a 5/16" spacer to make it fit right. Also will need new lug studs "X-tra long mag-shank" style, 1.380" shank length x 0.687" diameter, 12mm x 1.5 threads. As for the back I think Im going to run a 15x10 with 7.5 backspacing. I shouldn't have any clearance problems in the back with the inner fenderwale should I? My car will see some street racing so what tire would work best for street use up front? If Im correct should I run a 26x7.50 on that size front rim? As for the rear I want to keep a 26" tire on the back. I think Ill get the 26x10.5 et streets, will I need to run tubes with these or not? Do I just need to grind the fins off the back calipers or the front to? I wont need to run any kind of different stud on the back will I?

 

Most of your questions are answered by my post in the "FAQ" stickied at the top of the "Wheels and Tires" forum topic page.

The 15x3.5's are not street legal, and that is stamped on the center of the wheel. I run a 26x4.5" tire in the front. I don't think a 7.5" tire on a 3.5" wide wheel would be a good idea.

ET Streets can be run with or without tubes. You need to keep a closer eye on tire pressure, if you are not running tubes.

Everything else is answered in the FAQ.