How to Measure Your Trailer Axle - Hubface: Measure from one face of hub (where the studs start coming out of hub) to the face of hub on opposite side. Spring Center: Measure from center of one spring seat, to the center of spring seat on opposite side (see image in gallery for more details).view less
Fully Assembled High Strength Straight Steel Axle Tube - Underslung: Axle is welded with spring seats on the bottom allows from lower ride height).For optimal usage, use with double eye springs. EZ Lube Design: Removable rubber plug on the hub cap with easy access to a grease-able zerk fitting. Grease your axle without pulling off your whole entire hub.view less
Designed for use on Light Duty Trailers: Utility, Boat, Car Haulers, ATV, Lawn & Landscape, Motorcycle, BBQ Pit, Cargo, Enclosed, RV Trailers and moreview less