ive noticed lately that when i slow down my brake pedal vibrates... sometimes it literally shakes!!... is this a problem and what is causing it...

bailling wire,duct tape and a swiss army knife won't fix this,,,,,,you need some anti-vibrating wheel grease!,,,,,,j\k
sounds like a warped rotor

i have a tsb for vibrating brakes on my truck... how could i have warped rotors? i dont ride the brakes hard and i havent worn enough shoe off to grind?

In my opinion the brakes on the Ranger are too small. It doesn't take much to warp the rotors and eat up the pads. First, I wore down my pads in a little iver 20,000 miles. (Not bad but I think they should have gone longer.) And to warp the rotors, it doesn't take more than a constant stop from 90 mph. I learned that fast. When I am in that speed range, I slow down pumping the brakes.

My brakes have done that since the day I drove the truck off the lot and I have 37k miles on it now. I had it checked at about 20k and the rotors were turned. I'm getting a brake job done later this week or next week so hopefully it will be resolved.

You can warp them by making a normal stop, and hit a puddle of water. It doesn't really take a lot. I'm with JDN on this one, the Ranger could use some larger brakes. They put larger rotors on Mustangs.