Just gonna get to the point, for about 2 weeks now ill start my truck in the morning to go to work and it starts absolutely fine, a little puff of blue smoke and on start up but other than that she starts and idles no problem, ill let it warm up for about 10 15 minutes then make my way to work, and it shifts from 1st 2nd 3rd and in around 4th and overdrive my truck will shake like a bugger! As if I had a flat tire or something, does it every morning and in about the exact same spot on the highway too! Ill give it a little throttle and it goes away, tranny issue?? Injector issue? Hopefully someone who has had this can chime in and explain or throw some insight!