suspension
was are u towing...if its just bumper pulls then u can get it up in the air a little...if its goose necks then u could maybe run a 4" kit and still be able to pull em. 6" kit will clear 36's maybe 37s with a little rub...as for a 4" idk but probly 35s
ya im pulling bumper- no 5th wheel- im lookin to put some bigger tires on but no lift cuz i do alot of drivin and dont have tons of money for gas. im mainly lookin for something that wont let my pickup squat to much and if it pops it up a little in the process than great!
honstly id do a 4" kit...i had one on my 6.0 and it rode better than stock didnt squat as much (still a little but nothing near as bad) and it let me clear 35s. again that was a 6.0 not a 7.3 so i cant be sure how it would ride with your truck



