1 3/4″ Bearing 25580 1 3/4″ Is The Measurement Of The Inner Diameter On The Bearing. 25580 SKU: 1646 Categories: Components, Hubs Related products 1 3/8″ Bearing L68149 Call For Price Part #:1644 1 3/8" Is The Measurement Of The Inner Diameter On The Bearing. L68149 1 1/16″ X 1 1/16″ Reliable Hub Dry Call For Price Part #:2077 Reliable Hubs Only Work On A Smaller Length Spindle Shaft. Dexter (UFP)/Lippert Replacement Lug Stud $3.95 Part #:2525 The Shoulder Micrometer is 0.615". The Overall Length of the stud is 2 3/8" X 1/2 " X 20. Add To Order Form UFP 8 Lug Vault Hub Complete Kit Call For Price Part #:3974 Please Click Here For More Information.