I just got my M/T E/T Streets mounted on my 69 Roadrunner. They are 295/65 15. I have good clearance with the springs and the outer wheel lip. I'm a little worried about the clearance with the front edge of the quarterpanel. I only have about 9/16" clearance at the closest point. My question is, is it too close? Will the tires rub with body movement? Will these tires grow very much at the top end? Everything is in the stock location, SS leafs. I would move the rear back but I already have a new driveshaft for it.

Got the right front spring hangers for those SS springs?

If you are worried about how far the input shaft is in the tranny after moving it. You can change the input shaft on the driveshaft,move it back and use the longer input shaft. I know there is 2 length's for 727's (if that's what you running) and assuming you are using the shorter one now....