He's got a point... I forgot about the weight factor... And a exhaust brake is a very worth while investment for your truck! :thumbsupI'm going to agree with the tranny upgrade, consider a air new intake, the edge box or something similar will help, but don't for get your going to have to slow that truck down, with that kind of load you should look at an exhaust brake to save you brake wear and brake fade, Also gauges are a must, pyro, trans temp, boost ect.
I agree a whole package trans and converter is the only way to go.. I pieced mine together and spent more having issues with things.Look at Goerend transmissions. If I did it all again I would go that route. Not that I don't like my DTT, but he is cheaper with a better warranty and I've never heard a bad word about what he builds.