Specs:3,500 lbs TK Trailer Axle (3.5K Capacity)5 x 4.5 Bolt PatternTube: 2 3/8"Standard 4" DropIdlerThis 3.5K TK idler trailer axle could be the part you need to get your trailer back on the road. If you have a utility trailer, cargo trailer, or ATV trailer that your business relies on every day, then it's important to have axles that you can trust. Your new 3.5K axle will come fully assembled, which cuts down on the time it takes you to put everything together. If you need replacement parts, then you can find the list in the Internal Components" below. Order your idler axle from The Trailer Parts Outlet today!Internal Components: 3.5k (3500 lb Capacity) Bearing Kit - includes:One Inner BearingOne Outer BearingOne Tang Washer - for EZ-Lube spindle applicationsOne Hub/Dust/Grease CapOne Cotter Pin - for standard spindle applicationsOne Outer RaceOne Inner RaceOne Double Lip Grease SealFeatures:Axles come fully assembledPacked with High-Temp Axle GreaseAxle comes with loose spring seats that will need to be welded onEZ Lube DesignRemovable rubber plug on the hub cap with easy access to a grease-able zerk fittingGrease your axle without pulling off your whole entire hubHigh Strength Steel Axle Tube Construction to ensureDesigned for use on Light Duty Trailers