I did use the 4r for half the season. I broke the 4r converter and went too the Th400. The th400 has been working great for me.
I'm selling my 4r100 now. If anyone is interested. I sent the trans to Brian and he got it ready for this season. I have one PI converter, one custom converter that cost a lot of money, all of that stuff has zero time on it since being rebuilt. A PCS trans computer, Dmax internally balanced flex plate, Destroke adapter plate to mate the 4r to Dmax. I also have a ratchet shifter.
Thanks guys!!! I have gotten a lot of help from my Dad throughout this build and my sponsors.
Danville Performance
Wagler Competition
HSP Diesel
Neal Chance Racing Converters
FlexiCorps Racing
Bullseye Power
Mayeda Motorsports
Deutsch's Truck Repair
Thanks again guys!