On our Challenger I bought a kit. Still had to buy a separate pitman arm. On the 64, I bought everything from Advance Auto and Rock Auto depending on who had the lowest price. It takes longer to compare prics, but you can choose which brand to buy. Came out cheaper buying it piecemeal. Advance had a deal where if you buy more than $50 and shipping weight is under 20 lbs, shipping is free. For Rock Auto, search this site for a 5% disount code (cuts shipping costs).