68 69 tire size?

I want to put 15" wheels on my 69. How wide can I go front and rear? Thanks..

For the rear you can go 15x8 with 4.5" backspacing, that should be the wheel damn near center in the wheelwell. I had 295 50's on mine when i had 15's. They were tight but worked. 275 50 or 60 depending on the height you want would give some breathing room.
Hope that helps. Lets see some pics of your 69!

I agree, I am right now sitting on 15x7 up front on 4" backspace 235-60-15, with 15x8 in back with 4.5" backspace and 255-60-15.