I got new hub assemblies and changed one tonight. Everything went alright until we tried to put the rotor on the bearing. The rotors will not fit the new hub assembly. The hub assembly are Timken, so they are a good brand. The ones that I got have the abs sensors on them, but my truck doesn't have front abs. Is this the reason that the rotor will not fit? I am having someone that works at a parts store check into it, but any help would be greatly appreciated.