Meritor RD35145 axle leak on front.

Howdy guys I am extremely far from an axle/drive line expert so hang with me. I have a meritor front drive axle and it leaks from one particular bolt on the cover where the driveshaft comes in. Pulled the cover off and it appeared to have spacing shims that acted as a gasket. I put a tiny tiny amount of rtv around the surface and put sealant on the bolts cause I thought maybe they were through bolts? Anyways I put it back together and it still leaks from the same bolt. See the attached photos. Not sure what I can do to fix it? Should I get a new shim kit? I tried to find some stuff on the internet of people with similar issues but didn't find anything. Thanks.

 

Ah yeah sorry I should have mentioned I did all of this minus checking for cracks. That didn't really cross my mind since nothing catastrophic has happened.