Hi, I have a AWD 02 Escalade 6.0, and the transfer case is shot. It is an NP149 case. There is a local used one for sale that came out of a 6.0 AWD 02 Denali same year but he says it's a Borg Warner. Are these interchangeable? I couldn't find much on the internet, when I type in BW it usually shows 03-06 Escalade. Thanks