Picking up a t56 tomorrow for my car, been doing my research on them lately and saw a couple things that were good upgrades, like the liberty 26 spline input shaft, and the lethal tob retainer, but is there anything else i should look into upgrading before i put the transmission in my car? I never plan on seeing more than 575-600rwtq out of my car, so i dont want anything too crazy, and the car may only see the strip a few times in its life. I just need it to be able to take what i can throw at it and not have to constantly worry about something breaking haha. So things like the iron 3-4 shift fork etc etc, is that all necessary for what i want? i know it cant hurt, but really?