I just joined, I have a 99 4Runner currently. Having some issues with it and with the way car prices are right now I can’t afford to get a new or even a newer car. So here I am trying to see what I can learn to fix my old lady. Just changed the breaks and calipers, shoes are good, cylinder’s are next, and about 2 years ago I had to change the brake booster. Ever since then she has not been the same. I’m going to have to change it again because I’ve gotten into a fender bender because it didn’t break all the way and some times it just won’t brake at all. The pedal gets stiff. I have a lot of questions about these brake boosters if anyone can help I’d greatly appreciate it.