Truck Hub Seal Installer Kit, 5pc Fits the Most Popular Size Seals for Class7 and Class 8 Over the Road Trucks and Trailers and Some Medium Duty Trucks. . The driver is designed to hold the seals to make installation easier. . Includes five drivers and handle extension for extra reach for driving seals on hubs with deep brake drums without removing the drums.. 61850 Truck Hub Seal Installer Kit:. Molded Case. . Shipping wt: 9 lbs/13 oz. Drivers Included:. 61700: 4-13/16”. 61730: 5-11/16”. Drivers Included: Fit Seal #. (Part #) 61700: 4-13/16 370001A. (Part #) 61730: 5-11/16 370023A. (Part #) 61720: 5-31/32 370025A. (Part #) 61740: 6 370065A. (Part #) 61710: 6-5/16 370003A 61850