Hey guys, i’m very confused on whats going on with my 4l60e. Ive had the truck for the last 55k miles and havent had one issue out of my transmission, ive never serviced it but i figured I might as well since i hit 55k. Went pretty smooth, however, once i went on a test drive i noticed it never went into 1st or 4th. I still have 2, 3, and reverse, and the gears that do shift feel tight. What couldve happened between the service?