i just replaced my rear pads. but when i brake my enitre truck starts to shake please diagnose this problem

 

How many miles on the rotors? Did you loctite the caliper bolts? Did you grease the slides?

 

Was it doing it before and did you tighten the lug nuts in a star pattern? Sounds like you need new rear rotors.

Does your steering when have any vibrations at all or is it all in the body?

 

99 huh? does it have rear drum brakes?

 

i have no idea how many miles i have on them. i got the truck used. it currently has 112,900 miles. and i paid to have the pads put on.

 

like the whole cab shakes.

 

haha. yes it has rear brakes. F-150's rear brakes do 70% of the braking

 

...

 

huh?

 

It has drums, but i wouldnt believe the 70% for rears, maybe 70% for the fronts

Do you know if they machined (resurfaced) the drums too?

 

no i dont know what they exactly did besides replaced the rear pads,
yes most ford truck rear brakes do 70% of the braking but its true caus my rears wore out way faster than my front, there was 20% wear on my front and only 10% left on my rear, they were replaced at the same time.