[tadams72]

I'm with a couple other folks here. Popping with slipping tires tells me your posi is not operating properly. I can honestly say I've never had a limited slip dif do that (act like a spool). I also don't agree that upgraded axles are going to fix it. I would not look at spending a bunch of money to ship it back to Ted just yet. You are close to Great Falls and they are big enough to have a reputable performance shop in town. Once you are comfortable, get some help troubleshooting and if necessary, open it up. Still going to be cheaper than labor and truck shipping it 2500 miles. On top of that, from looking at your sig, you're not in the HP range requiring beefier axles yet. Just out of curiousity, what is the "posi upgrade"?