Have you heard of a lift kit? Suspension parts are some of the most frequently upgraded parts on Jeep Wranglers and other modified vehicles. Stock suspensions can’t handle rugged off-road terrain, and they look puny next to impressive lift kits. If you want to keep your Jeep on the road, though, your stock springs and shocks will work just fine. So feel free to enjoy the savings created by the modification industry’s cast-off parts.