2/4 drop will be fine., My friends all had SLAMMED (4/6 ON s-10'S) lowriders back in high school. they looked cool, but they had to watch potholes, speed bumps, & curbs (just pulling into the gas station).
In reality by slamming thier trucks they took alot of the "drivability" out of them.... In my opinion, a truck should be a truck (not SLAMMED)... unless you have a full-blown custom or street rod that is NOT a daily driver