Kodiak XL Prolube Kit for Trailer Wheels - Fits 1.980in. Hubs, 3500-Lb. Axles Bearing lube for trailer axles with oil bath applications Reduces friction and runs cooler for longer bearing life Fits 1.980in. hubs, 3500-lb. axles Synthetic lubricant helps trailer run smoother, cooler and may improve gas mileage Designed to eliminate corrosion and leaks that lead to bearing failure