Well not exatcly, no emergency brake at all though.......
95 T100 4x4 ext 190K miles
Recently I set the emegency brake and noticed it did nothing, no matter how hard you pulled it would not hold\slow the truck from moving at all??????? I also noticed that the first stop I make in the morning yeilds some weird violent vibrations almost like badly warped rotors but only once a day????

I plan to dig into it a bit soon but just thought I would see if anyone else has been through this problem. Current thoughts....
1. Bad rear axle seal leaking diff lube in the drums?
2. Just worn out rear shoes (you would think you would at least hear some metal on metal during braking?)