Our trucks were meant to have an overdrive. We do not have the power band to get away with 3 gears,( granny 1st doesn't count) and no OD. There is no way you can be effective around town and out on the interstates without the OD. Heck, Gary and RLDSL have 8 and 15 speeds and that is the direction I want to go. If I had 3:55's, I would consider a T19 WITH a Gearvendors or Brownie behind it. I was even impressed with Darrin's C6/GV combo this summer at the rally, but once again, an OD provision is there for the highway runs.
I am not a fan of slush boxes but I would keep a good E4OD right in its place if it had no issues. Now if the E4DOA pukes its guts out and the T19 is right there staring at you saying "Look at me, look at me, I'm still good." then game on.
