You are purchasing a pair of 1961-72 D-200 Dodge swept line Rear End lowering Spring Hangers bolt on. The spring hangers are way better to use than doing a rear end flip. With this, it’s adjustable. Using these hangers, along with the shackles, you can get a 5-1/2” drop or less if you’d like. The spring hangers have 4 settings to lower the rear end. The spring hangers and shackles are a product of Guthrie Fabrications LLC. The spring hangers works with stock springs, reversed eye springs, or lowering springs. We also make spring hangers and shackles for the Swept line D100 ton. We also have c-notch kits. We carry lowering suspension parts for a number of different trucks including Ford and Chevy. Check out our other parts in our store. Thank you for looking!!