Sooo someone on Ebay sold me a non ABS booster which has a shorter rod and only allowed the master cylinder to be pushed like 10% . Got a new ABS booster for a 97 GSR, the mock up and test worked like a charm. Now for the real test is on the car and bleeding the brakes, What a hassle over someone selling me the wrong part and not knowing. Never again lol. Cost me like $100+ and months of time trying to figure out why my brakes wont work.