[DieselSJ]

You need the pedal box that matches your brake booster - vacuum or hydroboost. There are usually a few for vacuum brakes on Ebay. Hydroboost pedal boxes are getting rare. I couldn't find a good aftermarket setup when I converted mine. On the 87, there should be dimples on the firewall where the stock hydro clutch master will mount. I bought a master and slave and used the fittings to convert to AN and made my own line.