I have a 1996 L/C and today when getting new tires the mechanic said that my rear brake proportioning valve was leaking and asked if I wanted him to fix to the tune of $488. I said no thank you. Knowing that I had ih8mud when I got home. Anyway, my truck is stock with no lift. How do I go about replacing this rear brake proportioning valve and is it easy to replace? Where do I purchase the part from? Also, it would be great if someone had pics of how to do this. Thanks everyone!