26 inch auto radiator

26" rads were used in all sorts of engines in 69, but it doesnt look like any of them were "A" bodies. When Nitemoves gets you the dimensions from his dart, that should tell you if it will fit or not. If it does physically fit, but the outlet is on the wrong side, all you have to do is swap to a different water pump, no big deal considering the good deal on the rad! Hope this helps