I wondered if the rear D44 in my LJ had a trac-lok or not. Internet lore suggested that it did, but I wanted to be certain. I had the rear shafts out to replace seals/bearings anyway, so I pulled the cover and replaced the fluid while I was at it. Perfect time to see if there was a trac-lok in there or not. Oh, and I had my 7 and 3 year old daughters help. 😉