Had my TT installed last week by a 4x4 shop in town and 2 days later the axle seals leak (both sides). So I called the dealer and told the service manager I need to bring the truck in for axle seal replacement. He ask me which side and I said both sides are leaking, I asked him to check the parts dept. to make sure they have the wheel bearings and seals in stock before I went in cause I lived 1/2 hr. away and didn't want to go twice. 1 hr. later he called and said that he talked to a service tech and the parts dept. and they said that if both sides leak I will have to get both axles replace (Nissan's reconmendation). I miss understood the guy and said no no no I don't want the whole rear end replace, I just installed detroit truetrac in there not too long ago,(I didn't want to say when). The guy said oh no we're not replacing the entire rear end just the axles with the seals and bearings already pressed on. I said oh in that case order it in. Went to have it installed today at the dealer. It only took them 1 hr. to change them out. I can't believe it they didn't give me any sh!t about the truetrac especially after I told the service manager it was in there. What a great service department.