235-60-15 on ralleye wheels fit on duster?

Will 235-60-15 tires fit on the front of a 74 Duster with disc brakes and not rub? I bought them for the back and fit nice. Problem is- I had to buy all 4 tires-used- to get them. Either $200 for the 4 of them or none at all, guy wouldnt sell just 2. No biggie. Figured its good to have an extra set for burn outs lol. Now, I am contemplating putting the spare 2 up front. I was going to run 15's on back and 14's on front. Now maybe 15's all the way around. Will these rub any? If they will work, I will need to find 2 more 15" ralley wheels, and a steelie for a spare. Im in NW PA if anyone close has 15" Ralleys. I also have a full set of 14" Ralleys taking up space.