300SDL BRAKE PROBLEM

[brandlj]

I am going to describe some symptoms that have just started on my 86 300sdl. When I step on the brakes, my left front wheel pulls hard to the left. It is kind of scary. I looked at my brake fluid, it was not that dirty, but I flushed the system on Sunday anyway. I used my Motive power brake flush device and started at Right rear. I used 10psi in the flush unit. The right rear flushed quickly, as did the left rear. Then when I went to the right front, it barely dribbled out of the bleeder valve. I let it dribble for a while, then I did the left front and it flushed normally. I am guessing that my right front rubber brake hose must be constricted internally? I ordered two new hoses for the front. Am I on the right track?
My hypothesis is that the right front caliper is not working as well as the left because of the constriction in the brake hose. By the way, the left front wheel was black with brake dust, the right not so much.
Or could it be that my left caliper is sticking?
Any input would be appreciated.
Thanks