I am getting my new axles in a week or so for my TJ. Disks up front will be off a K series Blazer. Disks in back will be SVOs off mid 90s Explorer. I was told by the guys making the axles that all I need to do is take out the spring in the rear proportioning valve and this will allow equal pressure to the back and front. Is this all I really need to do to have great brakes? Is there any other solutions? Does anyone know of a hydro boost system that I can fit on my TJ? Thanks.