dammit! i dont what caused it, but after an extended period of driving (45 mins), or a short time of rough driving (rpms at or over 3000) I start smoking....I really can't tell where its coming from either....I dont know if its the engine or maybe even the new tranny I just got re-built...its not really that bad, but enought to keep me from driving long distances. this is really bumming me out...It seems like im just dumping more and more money into my rig. I guees if I were more mechanically inclined, i'd be able to figure this out, but after spending $1500 on the tranny not even 1 month ago, Im just afraid of what I might get told at a mechanics shop. any tips, suggestions?