Does anyone know where you can get a quality rebuild kit for the transfer case. I just had my transmission rebuilt last year, and I was hoping to have the x-fer case done next, but the guy who worked on my 4L80E Tranny wants another $1600 to do the x-fer case. I'm thinking that's a little high, and I'm tempted to do the job myself. I don't see the x-fer case being that involved, not like the tranny. Any thoughts?