Scubaman

ok so I am hearing of shudders different places we have 2 trucks in the fleet 2017, 2019 both trucks have a slip at 5mph then a hard shift into what would be 2nd gear ? not all the time a couple a day or when you back out of a space and shift from R to drive when everything is cold. dealer wont acknowledge a problem. started when new and seems to get worse as the truck gets older. no shuddering at high speed