Towing a truck or bus often means pulling the drive axles. And a lack of oil can result in burnt bearings, scorched hubs and melted seals. These Axle Caps are equipped with an oil-access hole for adding oil to the hub prior to towing to prevent damage. 4-in-1 Axle Caps fit most 8-bolt tandem and large single axles – the most popular hub on the road. Prevent Damage: Caps feature an oil-access hole that allows you to add oil to the hub prior to towing Easy to Use: Axle covers do not need gaskets for attachment Outside Diameter: 8.5″ Four models in one axle cover – 8 bolt Most popular model for tractor trailers type trucks (5/8″ stud) Dana/Mack/Meritor 8-Bolt Sold as a pair Center to Center: 7″
