Revolution Gear and Axle Discovery Series 4340 Chromoly Front Axle Kit, fits 1978-79 Ford with Dana 60 35 spline axles. This kit replaces the Spicer 5-806X u-joints with Revolution Gear and Axle HD Chromoly u-joints. These u-joints are a non-needle bearing design and must be maintained, not recommended for daily driving. This Revolution Gear and Axle Front Axle Kits comes with Qty2 35-Spline 4340 Chromoly Inner Axles Qty2 35-Spline 4340 Chromoly Outer Stub Axles Qty2 Revolution Gear and Axle HD Chromoly U-Joints with snap rings and zerk fittings Revolution Gear and Axle Discovery Series Axles are backed by a 10 Year Warranty covering manufacturing defects and axle breakage, bent axles and twisted splines. This warranty is non-transferable. U-Joints are only covered under warranty against manufacturing defects for 1 Year (Front Axle Kits with Revolution Gear HD Chromoly U-Joints carry a limited 10 Year Warranty). Parts subject to normal wear are not covered under warranty; this includes bearings and seals. Revolution Gear and Axle reserves the right to either axle replacement or credit after the first warranty claim.