hi guys just wanted to let u guys know that with 3.75" backspacing you can run a 245/60/r14 tire on the back of a 67 skylark i just took my brothers cutlass supreme which has 14 by 7 wheels on it with the tires mentioned above and the fit with a decent amount of space between the quater and the tire. I know how hard it is to figure this stuff ot sometimes so i figured i give you guys this combo thanks adam