I have a friend who just bought a used Pred. When he brought it over we found his ball joints were in bad shape. His quad is out of warranty but Polaris offered to replace the ball joints but charge for the labor, (2-300 bucks). We're gonna try to do this ourselves to save money. I/ve heard on this site that you need a special tool for this job. Any tips for first time do-it-yourselfers? Any input greatly appreciated.