I replaced the master cylinder and booster as a set. As some of you may remember, I bought a new set from Advance Auto a while back and installed it, only to find out it was bad, both the booster and master. So being in a bind and needing the truck I pulled this master and booster off of my grandpas rolled truck and installed it into my truck. This booster and master are also very low mile units. We had replaced them in my grandpas truck only weeks before we rolled it.
They estimated $379 to install a new master cylinder. Like you guys I think they are trying to recoup some of the costs for the diagnosis time and time installing those hoses etc.
Oh yea, they told me "To be honest I really want to bail on this thing because nothing on it is original equipment. Its so heavily modified we cant tell heads or tails of the thing, whats original whats not, what kind of parts are needed to fix the issues etc. But I'm going to try to fix it for you because I want to help you out. I just dont like working on heavily modified vehicles like this."
He then went on to tell me, "You don't have much working on that truck right now do you. Your speedometer isnt working (I disconnected it a while back because the needle was skipping) and none of your interior gauge panel lights are working." When he said the interior gauge panel lights werent working theres only one answer to why that is, because they did when I brought it in, the 4x4 indicator has a short in it so when you put it into 4wd it blows the fuse. So thats got me wondering why they thought they needed it in 4wd now too.