I bought these bushings for my 2001 f350 sw lariat. And went to a parts store and compared them to make sure everything was the same and let me tell you these Detroit axle hubs are better. They have an o-ring for the 4WD hub and the parts store doesn't. The plugs have an anti-seize coating, but the parts storage bolts do not. And every dimension was identical. I believe these will be high quality and durable bushings. You can also get an oiler from the sinister diesel to lubricate the bearings by removing the fyi abs sensor. Will definitely buy there again.