rough stops

i have a 91 civic lx
the problem that i am having is shaky breaking, especially on inclined planes. my first thought was the breaks. they hadn't been replaced in a while, so i replaced them with new brakes and rotors. the brake fluid was fine and everything else. is there any other possible cause to this problem? it is driving me nuts.

Are you sure that the hubs were perfectly clean when you put the new rotors on? Are your wheels properly balanced and aligned?

Is it a pulsating pedal or a shaky steering wheel?

Are all your suspension bits tight, like tierod inner and outter ends?

the shaking is mostly felt in the steering wheel. as for the hubs and rotors, i cleaned and inspected them thouroughly. tires were replaced 1500 miles ago along with a four wheel alignment. i'll have a look at the tierod ends.
any other suggestions?