Originally Posted by rayhuang
also-just FYI-these new D-style diff rings are the best I and others (chicky) have ever used. No sanding to eliminate runout. VERY flat rings from IRS.

i am using them now and really like em.they are flatter than the stock rings.i grind my rings to be flat within .0002. i only had to take .003 per side to get them dead flat.they catch the hub really good.i was curious if they would eat the flat on the hub but they have not even left a mark.i wont run anything else anymore.they are not only lighter,they are pretty damn flat too.