this is my first post hope I can find some help-I have a 1996 mariner magnum III 150 that needs a new impeller the problem is when I went to remove the Trim Tab bolt so I could expose the hidden lwr unit bolt, it is frozen, I cracked (3) 1/2in sockets 3/8th drive trying to remove the bolt also soaked it over night with PB blaster. If anyone has had this problem I am open for any suggestions. Thanks

