I trimmed the ribs off the back of the tailshaft where the brake cable runs past. I'm concerned that I took too much off as that is where the rear roller bearing is, time will tell though.
I have a pinhole leak at this location from grinding off too much meat, I'm going to fix it with epoxy and see how it holds up. Pictures tomorrow. Worse case is I'll pull the unit and have a buddy weld it up if the epoxy doesn't hold. Perhaps a set screw in the spot would work too, hmm...