Drove the truck down to Seattle to have dinner and a beer with old friends from the bank. It drives a bit different than before, with before meaning from 2004 after the first custom tranny. It has always been a bit of a little hot rod, but I think in a drag race it is quicker now than before. The reason is in how this torque converter is setup vs the DTT 89 percent converter. The coupling in the DTT converter was really tight(and they had two even tighter ones), from locked to unlocked was just 200-300 RPM's, not allowing the motor to rev much past the actual vehicle speed when unlocked. With this new triple disc torque converter, the fluid coupling is looser, allowing the engine to rev more when it is not locked up. So the new converter seems to have more torque multiplication. Before the switch from unlocked to locked was like a small gear change, and now it is much more like a full gear change(fitting a gear between each mechanical gear).
Hope this is not boring you, but towing I believe it will act much more like a 6 or 7 speed tranny vs the old one that acted like a 5 or 6 speed(Being a 4 speed in reality). Or it will still act like the old one with (5 or 6 speed) but with better gear spacing). Sequence is 1st, 2nd unlocked, 2nd locked, 3rd unlocked, 3rd locked, OD unlocked, and OD locked. Depending on my DTT smart controller settings it could act like a 5 speed or a 7 speed. Smart controller has 4 different settings that determine at what speed it becomes active, lock up minimum speed, when it shifts to OD, and how much throttle is need to unlock the TC lockup(a protection feature, that may not be needed with the triple disc). I might have to watch tranny temps a little more closely, using it in the unlocked mode!
So in layman's terms.
Original stock truck - was like a rubber band between the throttle and vehicle movement.
DTT Custom tranny - rubber band between throttle and vehicle was almost completely gone.
Newest tranny - some of the rubber band effect/feeling is back, but still less than stock.
Got to tow to really know much more!
Now to find a rice burner at a stop light to dust off!!!!
Chris