I ordered a complete 9 with my 4 link from TCI with a tru trac in it for my build. Got her running in 2011 and have only put about 2600 miles on her. In the few weeks before I put it away for the winter it started peeling just one wheel. From what I understand it shouldn't do that. Did some research and it says to not use synthetic or friction modifier. When I ordered it, it came with 2 bottles of sythetic and a bottle of friction modifier so I put them in. Wondering if changing the gear oil will rectify my problem? Or could it be something much more serious? and Also wndering why they would send improper oil and modifier when you buy it from them brand new, anyone else run sythetic in a trutrac and have problems?