XRAY offers genuine Ball Differential made from lighweight aluminum. The part number is #385001
http://www.teamxray.com/teamxray/produc ... kategoria=
The original spider diffs work excellently in most conditions, though for high competition you may use the optional aluminum ball diff that provides extra long life and adjustment possibility.
Front one-way diff is available as well - #385101
http://www.teamxray.com/teamxray/produc ... kategoria=
I strongly suggest to use authentic Xray option parts which is 100% guarantee the parts will fit, that you get the premium quality for your money and that the optional part is really worth of it and is not just a fancy bling.
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