85 CJ7 AMC 20 Detroit Locker question
So I put in Detroit Lockers in my 85 CJ7 AMC20 a few years back. They are working great and have never had any issues or strange noises. On my last off-road trip, I dragged the bottom of the AMC20 on some rocks which pealed back the diff cover and caused a leak. I tried to get it to re-seal by gently nudging (ie hammering) the diff cover to the diff to no avail. so I had to crack the seal and put in a new gasket. While I had the cover off I noticed some odd scrape marks on the lockers. The attached picture shows the scrapes in the highlighted area.
So my question for all of you --- has anyone seen this ? is this 'normal' ?Anything I need to be concerned about ? Ideas as to what may have caused it if not normal ?