My 1995 GT with 160k miles has been having trans issues for the past year. When I start it and first take off, the tranny shifts fine right up to 4th gear no problems. After a couple of minutes when it warms up, it starts jolting once I hit 3rd gear. Im assuming these automatics skip 1st and just start at 2nd gear unless you put it in 1 on the shifter. Taking off in 2nd is fine but once it shifts to 3rd, the trans hesitates to go, jolts and vibrates like mad. Then when it shifts to 4th, it goes back to normal and it cruises fine. Is this common? I was thinking of a rebuild but if it's a simple fix which I doubt, then I'll wait.