update
One of the things that happens with the FTX D&R kit is that we replace one of the screws that holds the chaincase cover on with a allen stud, and nut. The reason for this is some clearance challenges with the case being lower and protected by the rock guard. When I was tightening it, I noticed that I didn't like the 'feel' of how the nut tightened. I was being careful not to overtighten, so my guess is that the threads were already weakend prior to me getting the sled? Oh well, no blame intended, it just felt like the threads were starting to give. This bothered me, so I decided to take it out again (yuck!) and do something about it. My options were to helicoil it or what I decided on was to finish drilling out the threads, and put a thru-bolt in from the back side. I could still use the nut and washer for clearance issues. The way I kept the bolt from spinning, is I welded a small rod to the flat top of the head, and that rod prevents the head from spinning. I didn't have the camera while I was working, so I didn't take any pics. But hopefully, my description is enough to explain what I did.
So far, no leaks, and I like the idea of the through bolt. If in the future, any others strip out, I think I'll lean towards this method to correct the problem.
PE