[Duro5341]

Hey guys

My 86 K10 pulls to the right while braking hard. I don't notice it normally, but I am very easy on my brakes. It has newer calipers, pads, and machined rotors on the front

It's not something I am terribly scared about, more of an annoyence.....

I am wondering if it is the MC, or the proportioning valve.....being the lines look good, and I am not loosing any fluid at all

Thanks
Cameron