[hatzie]

Lots of folks mis-understand the names of parts on the outer ends of the front solid axles. I screw up the names when I start posting without thinking...

Hub locks are made by Warn or Spicer or Mile Marker or... I believe you're calling these Hubs... The Warn 20990 are almost on-par with the old 70's Spicer hub locks.

Hubs are the big hairy chunk of machined steel that holds the wheel studs, wheel, and the brake rotors. The Hubs turn on the tapered wheel bearings on the outside of the spindles. The inner profile is similar to a 2WD brake rotor with pockets for the outer wheel bearing races and a grease seal that rides on the spindle.

The spindle is another big hairy chunk of machined steel that has needle bearings inside that carry the stub end of the half shafts from the diff and a profile on the outside that carries the tapered wheel bearings just like 2WD front spindles or the wheel hub ends of full floating rear axle tubes. It's bolted to the knuckle.

The only reason I've ever replaced Spindles or Hubs is when they were just plain chewed up by road salt... The spindles can be badly damaged when the servicing tech doesn't use thread protectors for the wheel bearing nut threads and accidentally whacks the threads. Tape ain't gonna do it.

If you don't have protectors re-install the hubs with the wheel bearings and retainer nuts... after you get the spindle bolts out of the knuckle. You can thump on the hubs pretty hard using s dead blow hammer without doing a lot of damage. The worst thing that'll do is damage the tapered bearings that you're replacing anyway.

Speedi sleeves work great to renew the grooved area where the seal lip has ridden for years.