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1. Step one was removing our old system, some of which had been in placefor over 20 years. Stubborn rusty slip joints are almost a guaranteedcut-off item, but if you plan to retain the exhaust manifolds as we did(see Save the Manifolds sidebar) you'll still have to get the pipes off.Fortunately, we installed brass manifold nuts on the driver side in1986, and they loosened right up. The steel nuts on the passenger sidewere more troublesome, and we considered ourselves lucky that only onestud broke. Penetrating oil should be applied liberally well before thedisassembly attempt.