factory has a gasket when i swap tcases i just rtv it with no gasket never had a problem and yes my rig has been in watter over the rockers... to the point my feet get wet inside lol
oil whats that? lol i havent ever checked it or changed it so im not sure... there is a gasket fastory on it there hard to find most people just use black rtv to seal it up works fine
well in a few weeks it might be all comeing apart gunna tare the big truck down and put everything in the ranger 1tons 44s and a 600hp 468big block ford