The Kodiak Disc Brake Kit - 12" Hub/Rotor - 6 on 5-1/2 - Dacromet - 5,200 lbs to 6,000 lbs # K2HR526D you referred to use a # 25580 inner bearing and # 15123 outer bearings, which come included with the hubs. These are the same bearings that come in the # DBRKHW6EZ you were referring to, as well as the matching races and grease seals. You will want to make sure that these are the same bearings that are on your existing hubs so that you've got the correct kit. These are all compatible with... view full answer...