Sorry Sky, I didn’t see that you already had the DTT transmission stuff. I had mine done about a year ago and so I don't have the upgrade kit you are talking about. I was just speaking to Bill about my SmartController and I asked him about the upgrade kit. He said in essence that DTT’s transmission upgrades are constantly evolving, constantly changing to meet new criteria. Like Bill said, a year ago, 350hp was a lot of HP, now…. So, like most things, obsolesce comes fast. I’ll consider Bill’s kit when I see a need for it on our truck - like destroying a billet input shaft, hub, etc. Given enough time, I know I’ll be back to Bill’s shop for enhancements!
For those of you who are going to have DTT upgrade your transmission, just be honest with them about what HP you are aiming to make. They also want to know what your use will be such as towing, sled pulling, drag racing, etc. It will make a difference on how your transmission is modified and set-up. Go for it!
Sky, from what Bill said, the new mods make the Auto stronger still. Also, he has fixed the hard jar that comes from shifting from neutral to drive or reverse (not bad on mine). Some other things too. I don’t know that you would notice much difference between what you have and what’s currently available in handling or performance wise, but depending on what you’re doing with your truck, the update kit may help it to last a little (or lot) longer. Give Bill a call. Nothing like getting the info from the source!