O.k., I have to take back the above, I asked my LHS to enquire about the upgraded diff bolt when they were first mentioned, suggesting that in view of the number of failures they should be supplied FOC. When they finally became available my LHS contacted me and quoted the above price so in disgust I eventually phoned Mirage today.
The price is only if purchasing as a spare part, original owners are being supplied with replacement bolts free of charge, so hats off to Hot Bodies, bit slow in getting them out but alls well that ends well.
Now all I've got to do is find a buyer for the 2 D4's I have for sale, complete with diff bolt upgrade!
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Losi Eight T - Nova Rossi P21-7T- Hitec 5955's & Spektrum + TeknoRC Losi 8ET - Neu 1515-1Y - MGM 16025 & Hitec 5995's.
RC Heli's - Align T Rex 600 Nitro Sport - X-Cell Spectra G gasser.