The place I mentioned for the posi kit is Rons Machining service. They sent me the whole kit with an Auburn carrier, bearings, gaskets, seals and even the gear oil additive recommended by Auburn. They also offer Eaton or Power grip and Timken bearings. I recommend you replace your axel bearings/gaskets at the same time. The kit was $500 with free shipping. I also did the Dana rear in one of my Jeeps with a kit from Ron’s. No problem with either one of them and have beat on them both pretty hard.