I have a 1998 Mecury 60 hp. electric on my SeaArk which I use on the Missouri River with a LOT of sand. I don't have a book for the 60 horse but I do have one for a 2001 125 hp. Mercury. Just wondering if it would be the same process to replace the pump? I have replaced pumps on some of my older Johnson's but not though the hub. Any help would be appreciated. Thanks