I have been looking at the cutch packs that ATS sells and the transmission basic overhaul kits. I have never done transmission work but I am very mechanically able and wiling to do it myself. How hard would it be to pull the trans and install a kit like that? I am lookin to beef up my transmission some so any insight will help. What Is the best thing for something like that? Bi already have a five star torque converter and I just want to be able to add more horsepower safely. Would it just be better to get a fully built trans or have a local trans shops do the rebuild or install? It's for m 07 silverado classic cc/LB 4x4