Post mini tub tire combos?

for those of you that run 325/50-15 tires, did you alter the wheelbase? move the rear end back at all? thanks!

I wanted to be sure they cleared at the front of the tire so while doing the mini tub I moved the axle back 3/4". Turns out it wasn't an issue, now I still have room to go taller which I will be trying in the future when I can afford tires and gears. The 325/50's are 28" tall and I have about 1.25" from front of tire to that lower corner on the quarter panel, leaving room to go 29" easily