Review on 🔋 Cardone 54-74400 Remanufactured Vacuum Power Brake Booster: Boost Brake Performance Without Master Cylinder by Erik Peterson

in general it was a direct replacement but 3 days of troubleshooting revealed that the area where the red arrow is smaller than the factory arrow. It's okay if you know about it before installing it. I spent 3 days trying to figure out why my brake lights aren't working and why I can't shift out of park. After numerous electrical tests and switch changes, I finally measured the end of the rod that connects to the brake pedal. This area actually makes contact with the brake switch and controls your brake/shift interlock system. I measured the end of the old booster at the very end and it was .125" measured by the cardone amp and it was .109" thick, just enough to keep the brake switch from activating and driving me crazy in the process. A quick fix was to add a 1/32" spacer (18g sheet metal) between the two and you're good to go. Wrong way to do it, but I didn't intend to replace everything.