hi i joined diesel place a while back looking for info on my 98 3/4 6.5 chev and now i bought a 2005 gmc 1ton duelly 6.6 allison no mods yets and the truck needs new tires and a gear problem with rear differential there is gear oil leaking out the right side axel and burning on the brakes i thought i was burning brakes but its the gear oil from diff house and tips or suggestions on what to do i think me pulling the axel and brake and diff cover is cheaper then 100 an hour shop fees lol any tips and adivse i most appreciate:)