I was running these on my 3rd gen chevy and 3rd gen Dodge when I first got them. Never any clearances, they are generally pretty standard van size tires.
I've had 235/70/15s for the past couple years and had no issues at all on my 82 Dodge B150. I recently switched to 215/65/15s in the front and prefer the look, handling, and its way easier to steer since I have no power steering. For more detail info I was running the 235/70/15s on a 15x7 wheel with -6mm offset on stock suspension for the B150 (3300lbs axle)
Same as what's been on the front of my '73 Dodge for a few years and no problems. I do kind of wish I had went with a 60 series instead for a little lower stance.