The DBK9 provides an easy to install, bolt on solution for upgrading your pre-1980 Ford passenger car 9” rear-end to disc brake performance. MBM’s kit is unique in that it provides all the brackets and flanges that fit the three most popular sizes of the 9” rear end (3-3/8” x 2”, 3-1/2” x 2-3/8”, 3-9/19” x 2” ). This eliminates all guesswork when purchasing and installing the kit. The DBK9 comes in both standard and high performance models. The high performance LX kits upgrade to cross-drilled and slotted rotors and stainless steel braided brake lines.