All new HD set includes forged cups and adapters and instead of traditional washers, a 7/8" HD thrust bearing originally designed for use on 18-wheelers
Heavy duty grade 9 7/8" Diameter (1.25" Hex) drive bolt for unmatched durability
Thrust bearing cuts down on friction and makes your impact wrench work dramatically more effectively
Zinc-chromate plated for a longer lasting finish
Replace wheel bearings without the need for alignment after by keeping the strut assembly and steering knuckle in place during service
Master set for a wide range of applications, spray lubricate bearing and grease bolt before use