So I wait months for my adapter to arrive, in the description, says will work with any 6L80E. I download the instructions (none in the box) and there's a small warning box toward the bottom of the second page.... "Will not work with fixed yoke 2wd transmissions...." Which of course is what I have since my drivetrain came out of a G8. Reading through the directions and lengths at which it says to cut the transmission output shaft, I have plenty of length and spline. Seems the kicker is the O-ring protrusion on the fixed yoke shaft. Stops the T-case from fully seating by about .100" any reason I can't carefully grind down and buff that area of the output shaft down to the same OD as the splines? (Not losing any shaft size or strength). I could also get the t-case input shaft on the lathe and cut just a hair out of the input spline area to account for the hard stop on the output shaft (would require partial T-case teardown again). Pictures later. Anyone done this conversion? Not going to use an Atlas as I already have a fresh Dana 300 and cable shifter assy.