Perfect. I got my wheels and tires and need 1/4" spacer to clear the leafs so this would kill two birds. I don't know what bearings I have? I am running 35 spline Yukon axles. They just bolted in.
If they just bolted in then you've got green bearings. The OE tapered bearings have an adjuster on one side to adjust the end play. They also have to be packed with grease like standard wheel bearings. If you didn't make any adjustments or have to pack them with grease you've got green bearings, they're sealed and have no adjusters.
The Dr. Diff kits work with either style of bearing. I would imagine that the other kits that work with tapered bearings would too.