It seems as though I'm having a dilemma with trying to find the correct size bolt for my diff cover. I recently put on a diff skid and bought some longer bolts that I thought would work (broke one off in the diff, then a busted off an easy out inside that), but I relized they were too long after putting them all in. Plus after one use with the longer bolts that I got, they would not go back in for a second time. So I bought some shorter bolts to use (which were to small because of the guard) and they will not screw in either. At this point I thought that all the threads in every bolt hole in the diff was fubar'd, at which point I freaked out with some choice words. After calming down a bit, I tried an OEM bolt and it screwed in fine to every hole. So my questions. Are the OEM bolts tapered? Can anyone give me some specific measurements for bolts on what they use with a diff guard (half inch ring around the pumpkin)? Suggestions, comments on the TOPIC please? Thanks ahead of time!