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 bearingsโฆ