Built in house at WCFab these traction bar brackets are designed specifically for use on the Dana M300 rear axle option commonly found on 2017 and newer F-350 and F-450 Dually (DRW) trucks which features a 4.5" diameter tube. These brackets bolt on to the bottom of the axle tube via the axle u-bolts and weld to the frame on the front end. Grade 8 hardware connects the bars to the mounts on the frame and axle. Pair them with our bar sets WCF100837 or WCF100839 for a complete traction bar kit for your application. Additional Attributes: GTIN: Material: Steel Universal Or Specific Fit: Specific Finish: Powder Coated Prop 65 Y/N: Y Extended Information: Emissions : Emissions Compliance Exempt Life Cycle Status: Available To Order Packaging: Quantity of Each: 1 Package UOM: EA Dimension: 20 x 8 x 8 inches Weight: 15 PG