Tranny and transfer case

[Htchevyii]

If you skip to the 8 minute mark, you will see how I re-drilled mine. There is a link to the Advance Adapters metal drill guide in the description. I think that I also have the file that I used to have the drill guide that I used 3d printed, if you or someone that you know has a 3d printer. It was a little scary on a brand new transmission, but came out fine. I used a standard bit the next size smaller than the OE 11MM and it still fit.