Have your Original Equipment Brake Booster Sleeved to original bore size's and rebuilt with a Professional repair kit with all new rubbers and boots. You can place your order online here and then send your parts in for rebuilding. It will take 5-7 business days here in the shop. You can also order on the phone or through email.
You will find these large box type brake masters on special use trucks and equipment, such as fire trucks, international trucks, street sweepers, garbage trucks etc. the peddle bell crank shaft also needs re-bushing and new seals to prevent brake fluid leakage.