Yukon Hardcore drive flange kits and hub provide the ultimate in strength and performance for serious off-road applications. Prevent your internal locking hubs from damage with Yukon Drive Flange Kit today. ?Our kit has everything needed to replace your internal manual locking hubs with a new Yukon Hardcore Drive Flange Kit. Fits Dana 44 with 19 spline outer stubs. Includes drive flanges, caps and all necessary hardware to install on both sides. YUKON HARDCORE FLANGE SET, D44 & GM 8.5 19spl, YUKON ENGRAVED, BOTH SIDES