Yes, an auto, as I use B-Quik for basic stuff, I had them change the 4x4 axle oil, they just showed me Mobil gear oil of the right type for the job.
The minor prob with the 4x4 disengaging was a bit of a pain, at times I had to stop the truck, put it in reverse, move a metre, then it would disengage, as an auto is always using force when in drive I thought that might be the prob, anyhoooo, the prob was solved with I assume a different brand of oil..