It does seem a little odd, i will say that. Is there differences between touring and off rd? don't know. Off rd maybe has more "shock" loading, but touring probably has more torque loading from 3.5 motors etc.
The circlip has been used in off rd diffs since the late 90's. Sure less power then, but same shock loadings.
Both Si and myself have posted to say we've had no problems - and we've had Cat SC longer than anyone else - over 1 year now for us.
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Matthew White
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