Rmmagow, that's what I sometimes think about doing as well but I was offering the idea purely in fun. I always try as much as I can before resorting to a bigger tool. I don't own any impact tools simply because I know I would break whatever I would use them on. Interestingly enough, it seems that nearly all the differential plugs I've had trouble with were ones on alloy cases. I should have checked my differential last week when I had my 300D on jack stands. I think if I were to check everything under my car that were to come to mind, my car would stay on those jack stands forever.
