I have noticed this morning when i brake hard the truck pulls to the right. This is the same way it drifts when you left go of the wheel?

Is this normal? Could the Toyo MTs have any affect on it?

Brake hanging up on that side, alignment?

I think it is the alignment. Just did it on a road sloped the other way and it pulled that way. I think I am just being a worry wart

Take the front brakes off and clean the slide tracks. Mark the pads so you put them back in the same place. (if this is nessary) If the brakes look bad replace the fronts.

I would got with an alighnment first. If it pulls driving/coasting that is more then likely it.
Along with that though. It woudn't hurt to clean the caliper slide bolts. USE BRAKE GREASE. Not to yell, but some other stuff will make the bushings swell and make them seize. Took a coworkers 04 Dmax to a dealer to find that one out.
You can buy the little packets of brake grease or a bottle of brake grease from local parts stores.

Will try that guys I had my tires off last week and my pads in teh front were worn very even on both sides and looked to have over 50% life left at 60k miles.

Look under the rear and see of either side of the axle has a seal leaking. Would be "moist" with dirt attached to the gear lube. If any oil/grease gets on pads, they are shot and don't grab near as hard. So, when you brake, it will "turn" the truck.

Does hard braking pull the STEERING WHEEL against your hand? or is the truck just moving to the side as a whole? If the steering wheel physically moves - it's in the front. If the whole truck wants to turn but the wheel doesn't change pressure - it's in the rear.