Originally Posted by F_ME

I use the Avid Revolution Ceramic bearings. They are metal shield on one side and rubber on the other. You run the rubber side out that is exposed to dirt.

As for your speed being slower on the straight with the slightly smaller spur, the only reason you would notice your truck being slower with the center diff vs. the slipper is due to slip. The main reason that the center diff would slip is due to your spring being sacked out. A new FT V2 SC10 diff spring is less than $2. I will bet you that if you compare the new spring to your existing, the old spring is shorter. This will cause you to not get enough tension on the diff and will cause it to slip. This will not happen with the new diff spring. I replace the diff spring at least once a month depending on use to prevent this from happening.

As for comparing the Center Diff to the standard or even FT VTS slipper, no comparison. I have a new FT VTS slipper. The V2 Center Diff is staying in my truck. The truck launches hard and is crazy fast down the straight. Diff action is more consistant and now tunable thanks to the new V2 design.