Also, Toyota doesn’t make these boosters anymore so you’ll have to get an aftermarket one. I wouldn’t trust an old one even if it is oem. People tend to like Napa’s though. Also, you can do a direct bolt on of a T100s brake booster. It’s a bit thicker so it will give you better braking power...
Hey I’m so sorry to hear about your issue. I was reading on other forums that this problem can commonly be traced to a vacuum leak in the brake booster diaphragm. These old boosters tend to fail so it may be worth swapping it out along with the booster vacuum line. You can test your brake...
