Biggest Rear Tire Size

Maybe not too lazy to read just tired of reading and not getting a clear answer or simply not knowing which advice is good... sometimes its hard to sort through the bullshit so creating a new thread is the easiest way to get an answer. I thought thats what a forum is all about???

I hear you. I had the same problem and after sifting through the bs I still wasn't sure. 245/60/14 with 7 inch rims at 4.25 bs fit my 69 Dart with no problem. If they made them, 255/60 /14 and perhaps slightly bigger would have fit with 7-8 inch rims and 4 inch to 3.75 inch back space so I imagine 15s would be close to the same as far as width goes. Every car is slightly different. In fact on my car one side to the other was 1/4 inch different. I had slightly less than 11 inches of room from spring to wheel well lip.