Will GM 200r4 work with factory floor shift location?

Here's another item you might consider replacing BEFORE you install a 2004R into your Mopar. Along with the better governor you'll also need to replace the speedometer (trans) drive gears. There are two of them and the colors and number of teeth can be found all over the internet. One is called the "driven gear" and the other is the "drive gear". If you know the rear end ratio that you going to end up with you should replace these speedo gears as you get your transmission overhauled to save you some trouble later. I hadn't decided on my rear end ratio (not 100 percent anyway) so I didn't replace my speedo gears BUT I SHOULD HAVE!! It's a pain in the @ss to drain the fluid and remove the pan then remove governor cover and pull the speedo coupler...it's not hard, but it's something you can avoid if you know what to do in advance. The dark green plastic gear in the pics is commonly found in the Grand National transmission (no surprise). The grand national typically comes with lower gears so unless you happen to get a GN transmission you'll have to replace these gears. Same goes for the governor.
I'll be doing all this and documenting it here on FABO so that you might have an easier time at it.

Treblig