Braking problems

[cr92max]

I have noticed over the last few months I have lost a lot of my braking power in the truck. Its a 03' 6.0 crew cab that I recently noticed is almost dangerous to drive due tho the fact that the brakes don't seem to stop like they should. Its almost like racing a car without good brakes that is experiencing bad brake fade and it seems like no matter how much pressure you apply the car wont stop soon enough. Occasionally I will tap the brakes at higher speeds and the truck will pull pretty hard to the right. this makes me think that only onle caliper is engaging and that is why I have terrible braking since it is doing all the work. Is that safe to assume? I had the tires off a month or so ago and checked the pads and they seemed fine. Wanted to get some ideas before I start to investigate this weekend. Thanks

[NYC F-350]

Might be a failed/failing master cylinder.

[SuperCrutyPS]

Might want to check your caliper slides to make sure they are not binding. Put some grease on them to see if that makes a difference.

[losbanosf250]

Yeah, when I did my front brakes I had a caliper slide seize up and had to replace the whole bracket. (get a remanufactured one, it's way cheaper) So I made sure all the other slides had been cleaned and put new grease on all of them.