My '03 Excursion came with the 6.0 Ford diesel, and the 5R110W automatic. When the Cummins was swapped into it, they used the same 5R110 transmission, and paired it with a PCS controller. It drove pretty well, but this particular transmission is not a good match for high horsepower applications. The Cummins in my Excursion is a twin-turbo, o-ringed and studded engine making maybe 550 - 600 hp. I really hate to de-tune an engine that runs so well, so I opted to ditch the automatic and go with a 6 speed manual transmission.
I will have a bunch of stuff for sale... the 5R110 transmission that needs freshened up, the NP273F electric transfer case, torque converter, the Cummins to 5R110 adapter plate by Diesel Conversion Specialists, flywheel, and PCS transmission controller. I'd make someone a deal on it all if they want it.
All the factory gauges work well, other than the tach. It jumps around a little, but I think the pickup just needs adjusted. All other gauges work perfectly.
I'll put up some more pictures if you're interested.
--Eric