I'm posting this for everyone even though it's off subject.
Don't buy Auburn!
I had one installed in 2005 in my 03 Dodge Ram and it broke last week. I never abused it like I would a muscle car either.
Have you did any research about the Powertrax?
I think but not exactly sure that the Powertrax will make a popping noise while turning. The Auburn was a cone type that did not make any noise (until last week) while turning. The clutch type are quiet also while turning.