ok...this might sound weird but whenever i wash my truck and then drive right after the rear brakes will lock. if i push very gently they wil act normal...but this will go on for about 3-5 miles then they are fine....wtf is going on with my brakes? is this just water on/in the drums(cause i don't think thats good)?

 

I don't know, but I do know my 1994 Ford f150 used to do that. It was dangerous as heck if you forgot about it. Those suckers would lock up big time, then be fine if I pumped the pedal a few times.

 

even if i pump it wil still lock...no doubt its freaky but i don't get hard on the brakes unless i need to...like i said it take a coule of miles tro go back ot normal....in the snow this would be fun....but i am not looking to flat sopt my new nittos

 

I believe its the water getting on the bare metal surfaces and rusting them. When I drive my truck in the morning after it has rained all night my brakes are SUPER touchy the first 2 times and then they go back to normal.

 

I had a 93 F150 that did that mildly - if it was wet out the first couple of times on the brakes would be touchy and would seem to grab.

You really think it's rust? The only surfaces of interest are the brake drums and the pads, and isn't the drum surface something that doesn't rust easily? It's obviously affected by the moisture, we're got that figured out. Perhaps your pads are bad and are too soluble, swell a little with the moisture, and then grab and hold when they are pressed to the metal surface? Just an idea - the condition of the inside of the drum and the pads would be the first thing I would check out.

 

do you armor all your tires?