To get the socket on mine I used the 1/2" ratchet with a 3/8" adapter and a 3/8" 12 point socket. Seemed to be about the right length to allow the socket to seat on the bolt head. You might try different setups or extensions to allow the reach. I did have to take the drivers side up pipe heat shield loose by removing the top screw and then prying it back with a large screw driver, it is thin metal and flexes easily, to get room for the socket to line up with the bolt. I got the screw driver shoved in between the heat shield and the up pipe and left it in place to keep the heat shield out of the way while I loosened the up pipe bolt.
Mike