Installing a heavy duty spring allows your cart to perform better with the added weight of passengers or cargo. Single leaf parabolic design for more strength! Rubber bushings are included with this purchase!!! Installing this spring will make your cart ride rough from the start but will loosen up over time. Fits the Following Cart(s): Club Car Precedent 2009+ Gas and Electric models(Will not fit DS or Carryall model golf carts) Leaf Spring Kit fits 2009 and Up Club Car Precedent gas and electric models (will not fit DS or Carryall models).