Anyone out there replaced just the ball joints on their 451. I picked up a set from Rock Auto for $13 bucks each (DelphiBrand). Before I rip apart the front end yet again I want to make sure I know what I'm in for. I have searched for a how to online and can only find for 450, or whole lower arm on 451. I don't want to pull the whole lower A-Arm. The BJ appears to be held in with a snap ring but I can't see which side it is on on the OE units. Any help would be great.