ATS has a Stage 1 68RFE on the market, consisting of a converter, deep pan, and a "built" transmission:

http://www.atsdiesel.com/ats2/product/3092326

One of their built 48re ranges from 4-8k

Lets see, NADP, ATS, and I believe Suncoast are all marketing a trans. As of yet, none have held any more power than a stock one that Ive seen.

If you have a 6.7/auto and want power, you best swap a built 48re in because its looking kinda bleek for the 68RFE

 

I personally will take my chances.....a friend has over 100k miles on his 2007.5 RAM 3500 (pictured below) hauling hay or farm equipment 95% of the time with no trans problems to date. He previously was running a Juice w/Attitude with MP8 stack but now has the Smarty.



Greg

 

Im talking more along the lines of 6-700+. Time will tell if someone can get one to hold bigger power, but the options now are limited

I will say, if I kept one stock, itd be my choice. Have driven a couple and they do seem nice though