Centrifugal force can throw the rear end lube out of the housing and into the wide 5 hub. This can cause wheel imblance and the ring and pinion to run dry. Also makes for a real mess to clean up.
Wide 5 Hub Seals keep the rear end lube out of the hub and grease in the bearings
Light weight aluminum with bonded neoprene seals.
Installs by hand, no need to remove bearing races.
Works on Front Hubs too!
Can be used with Outer Hub Seal