[camshaftgsxr]

by new do you mean fresh calipers and pads and rotors along with a proper funtioning load sensing proportioning valve (assuming that truck has one), if they wont engage antilocks then something is wrong, if you did engage the antilock brakes you were at full stopping force with the load and width of the tires and all i can suggest is pay more attention and begin slowing sooner or buy wider stickier tires.


im sorry if this part is redundent but this is what i would do,

1 check rear brakes and or replace them (they dont normally matter but with a load they become vital)
2 check front calipers for biting by slamming on your brakes with the abs fuse pulled and see if the skid marks are different lenghts, if they are one or both of the calipers may be freezing up (replace)
3 check rotors for minimum thickness (its on the rotor but you can google it)
4 check your master cylinder for leaks and low fluid
5 report back if i missed stuff sorry im trying to do this off the top of my head
6 if you already knew all this again i dont mean to offend this is just what i would do