Biggest tire on 1969 dart

dallas ward said
Anybody get a 15 x 8 to fit
If so what back space

It's not a dart, but on my 68 fastback, with stock spring location I fit 15x8 rims with 4.5" backspacing, running 255/60/15 tires with about 3/8" room to spare to the springs. The room to wheel lip was about 1/4" to 3/8" if I remember right.

Just my 2 cents.