I am having the same problem with my 65 Fastback GT350 Clone.
I need to find out what the dimensions are for the max sized rims i can put on the back,
I have currently got a set of Vintage wheels PIn drives, (replica hallibrand knock-on) which are too wide and stick out from under the body. about 2 inches
I do not wish to roll the fenders or narrow the rear end.
does anyone out there know what the max backspacing and then width of wheel is that i can go to, to have them fit under the fenders still..........i have the standard vintage wheel 7.5x 15 inch at the front , i would like to go with a 9.5x 15 at the rear, is this possible?? and if so what offset and or backspacing will i need.
bear in mind that i am running the pin drive adaptors too.