Will GM 200r4 work with factory floor shift location?

Be very careful when you use the Tap drill. You have to keep checking to make sure you go deep enough but not too deep. If you go too deep you'll destroy the flare fitting surface on the other end of the fitting. If you go too shallow the tap will bottom out and you could accidently break it.

treblig

Very true! I used a low drill speed and the drill still felt like it was just sucking into the fitting. It was hard to hold it back without using a drill press. I wrapped tape on the bit to help gauge the depth. I also bought a couple extra fittings in case I screwed up. I got lucky this time.