new to board - ? about rims & tires

[ID69]

Hello to all. Have monitored this board for
over a year and have found it to contain a wealth of information, but the time
to step up with my own questions has arisen. I recently installed a drop spindle
kit (maintained factory springs) and 3" drop
springs in rear. After installation I went for a test drive, while cornering I hit a dip
in the road and actually caught a bit of my
front tire in the fender well. I have 16" rims (6 lug)with a 265x75 tires. I guess I will go to 15" rims (tire size recommendations?)
Also it seems like the front and rear tires
no longer line up. As if after putting on the
front drop spindles with disk brakes the rims
and tires set out further then with the drum
assemblies. Is it just me or does a disk setup require a different offset on the front
rims. Any info or comments would be appreciated!