Alloy USA 12195 D30 Manual Locking Hub Conversion Kit; Incl. Hubs/Axle Shaft/U-Joints/Front Brake Rotors/Bearings/Seals/Hardware; Max. Tire Size 33 in.;Category: Manual Brake ConversionLocking Hub Conversion KitD30 Manual Locking Hub Conversion KitD30 Manual Locking Hub Conversion Kit; Incl. Hubs/Axle Shaft/U-Joints/Front Brake Rotors/Bearings/Seals/Hardware; Max. Tire Size 33 in.;SPECIFICATIONS:WARNING CA Proposition 65: YesWARNING CA Proposition 65 Message: ATTN: STATE OF CALIFORNIA CONSUMERS WARNING: CANCER AND REPRODUCTIVE HARM - WWW.P65WARNINGS.CA.GOVFEATURES:4340 ChromolyComplete KitUp To 40 Percent Stronger Than OECNC MachinedLimited 10 Year WarrantyThe Alloy USA Hub Conversion Kit is designed to upgrade and replace the non-serviceable wheel hubs found on 84-06 Wrangler and Cherokees. Now you can lock and unlock your front hubs to reduce driveline strain and improve fuel economy! The hub conversion kit includes a set of Rugged Ridge Manual Locking Hubs, outer Alloy USA Axle Shafts, 1/2 ton capacity aluminum internal mounting hub, U joints, machined front brake rotors, bearings, seals and hardware.... everything you need to upgrade your rig and prepare it for the trail. Maximum recommended tire size is 33 inch. Rotors are 5 on 4.5 inch. Can not be used with locking differentials.ALLOY USA is a manufacturer of performance drive train products, high strength axle shafts and kits, performance ring and pinion sets as well as trick problem solving products. We specialize in Jeeps, Chevy muscle cars, Mustangs, GM, Ford and Dodge trucks. We are everyday enthusiasts just like you. We off-road, drag race, camp, raise families, pay bills, etc. We have over 30 years experience in the performance market, and we know what works and how to make it. We also know how to keep the costs under control, so we can provide High Quality products at a fair price.