When I changed my oil pan gasket my trans was already out (another project) but I only needed to lift the 350sb less than an inch. Also, put a socket on the front crank bolt so you can move the crank to get the counter-weights moved to the top and the pan will slide right out. Definitely use the Felpro one-piece gasket, clean your oil pan, might as well paint it also...............Here's a photo of mine after it was back in place.