I had no problem installing 295/50-15s on 4.5bs 10s into the rear of my lowered 68 Barracuda.
After I moved the springs over with the offset kit, and stood the tires up in the tubs, EDIT; the empty tubs with no rearend in the car. I just measured the distance between the mounting surfaces and ordered up a corresponding banjo and axles. I ordered mine a tad short in case I had to offset the diff either way; so I have have a couple of spacers installed . Nothing rubs no matter how badly I abuse her.
