The brakes are "activated" at the same time. The front brakes get the majority of the braking force. Most vehicles(trucks especially) will lock up the rear wheels first in a hard stop due to weight shifting off the rear onto the front(and trucks already are light in the rear). Most newer trucks have abs only in the rear. I'm not sure about what the 2000 would have as far as abs.
Breathing in and out is good enough for me.