the back rim is a 15x10 on a 275/60/15. there is 1 1/2 inch between the spring and the tire. eventually, i am going to tuck the 15x10s inside the well. a 14x8.5 (which is probably the actual width) with a 3 1/2 backspace on a 70 series tire will be close (in the back),but it will not rub.if you lift the back of the car up a hair, it will give it a nice stance and pull the wheel away from the well even more. ive always loved the look of a black center and a chrome lip myself, and if my cragars were not in such good shape i would have painted the centers, as the chrome likes to peel in the centers. 300 for a set of mint fentons is a screamin deal.I have a set of 15x10 and 15x6 slots myself. i have more pics of my tire and wheel combos if you are interested let me know. personally , i have sold or given away every 14" inch rim i have aquired and have never ran them,and i hear tire sizes are really limited, i dont use anything but 15s. i have used 4 to 4.5 1 " thick adapters from time to time and i know a place that makes them out of billet aluminum for 65 a pair and are VERY good and can take a beating.