Had 5.13s installed in my 08 Sahara on Monday. Drove 150 miles on Wednesday and noticed oil on my rear driver rim. I see its leaking from my axle tube. I called the shop and the tech said its my seal which he did not change. He said to go ahead and drive it but check every half tank as he cant look at it until Monday. I topped it off which was about 4 oz and continued on my trip. Drove another 150 miles and checked oil level. It was full. The tech mentioned he added about 1/2 quart extra oil when he did the gears. Could that have lead to the leak? Why isn't it leaking anymore?