I have tried unsuccessfully to drop my lower unit twice. I recently purchased this boat and I want to change the impellor.<br /><br />I removed four nuts, two on each side. I also removed a nut in the back between the anodes.<br />The shift connection appears to be splined, so I did not do anything with it.<br /><br />With all five nuts removed, the lower unit does not drop or show any signs of being loose at all. Are there any more nuts holding this together or any suggestions?<br /><br />Thanks,<br />Matt