Front end started to seem loose. I drive alot of gravel roads, and it seems to get tougher and tougher to keep it under control. I don't have a lift or any other suspension mods, other than a few cranks on the torsion bars. Took it in to the dealer the other day, they say I need a new steering gear kit? plus a new pitman and idler arm. Is there any good reason for this??, only 18000 miles and don't want to have to replace these parts again after another 18000 miles when warranty runs out.