Full floor pan install

If you have any prospect of installing subframe connectors, now is the time to do it - BEFORE you cut the old pan out. They go a long way to keeping the car from tweaking as you put the floor in. If you use USCT connectors that weld to the floor pan, you can install in the front and back at the subframes and then settle the new pan onto the connectors and weld them up as part of the process. Same goes for torque boxes since you are removing the pan above where they install.