I use a 15x6 on the front of my 65 Falcon. It is a TT2 with 3.26" of backspace using a 215-60-15 tire. On the rear I have a 15x8 with 235-60-15 with a narrowed 9" housing.I am looking to get new rims for my 1964 Falcon Sprint. Would 15"x7" rims with 215/60/15 for the front and 225/60/15 for the back work? I have disk brakes from a Grenada in the front. If this works, what off sets would I want?