OK here goes. I Am in an interesting position as my 07' needs a tranny with only 33k. I have been towing 6k to 9k every day pulling a detail trailer since I bought the truck 18 months ago. I have done all recommended maintence but my lead foot, oversized tires and other factors had nuked my trans. My buddy Boss Hogg on DTR just put a built Gorend on his 04 last week and did a turbo upgrade at the same time. He runs a smarty and a quad box. It is all EXTREMLY IMPRESSIVE. I will be getting the fully built trans within the month and Dave is going to need a list of power adders to get me the right t/c and lockup amount. I am going to upgrade to a HTT 62/71/13 ssOo at the same time and want to go back to the Smarty Sr. So Bob...can I run the Jr. from now untill october? If so do I need to run it on three? I will buy a Sr. because I want to run the tnt but dont have the money to do head studs, springs and by the Sr. untill the season (detailing) is over so what do I do. The goal is to have the t/c put in once. Thanks for any all help and tips from everyone not just from Bob. And thanks a million Bob.