Checked a friends '03 today with 25K miles- ball joints have . 025vertical movement. Also checked my '03 with 11K miles, did not use a dial indicator, but seems to have about the same amount of play as the one we measured. Upon consulting the service manual, there is no spec or test procedure for determining
what constitutes allowable play. We also checked an
04. 5 with 7K miles- absolutely no play at all. All three of these trucks are personal transportation- no plowing, towing or hauling.
It would appear to me that there is an issue here.