P1647
P1000
are the codes i have right now

also i got a tire today and they said if i dont replace all the tires together, that will cause the transfer case to go... again. lol

 

a new tire will have a larger outside diameter than a used/worn tire so they will rotate at different rates which can put undue stress on the t-fer case.
Ideal situation is to change all four tires at the same time...
best bet is to have the same size tires on an axle...



HTHs
Gary