So i got the idea to convert my Denali from column shift to floor/console shifter. After looking at a column from a 4.3 Stick shift Silverado, it looks like the columns are interchangeable. the wiring inside would need to be switched over but that's about it. The manual trans trucks weren't available with steering wheel controls. I also looked at the floor shifter from a Trailblazer SS. Doesn't look like to much work to mount it in the Denali. Just needs a mount made to bring it up a few inches higher than it is in the SS. The SS shifter cable also looks like it will be long enough to work. The overdrive button on the shifter handle can even be wired as the tow/haul bottom that's normally found on the column shift lever.