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Dalton Industries DSS-A2 Spider Shim
Some of the 2010-2012 Arctic drive clutches have a new cast spider that is a bit different geometry and only have one .060 steel shim under the spider from the factory because the spider is different. By replacing that single steel washer with this steel stepped shim would allow .085” thickness of that large diameter shim (instead of the stock .060, thus untucking weights more) and also .025 more belt side clearance. The racers that like to experiment with more belt grip may prefer this one piece shim to stacking washers of different diameters.
*Arctic and aftermarket sources sometimes offer special tools for removing the spider from a drive clutch. There have been procedures in some service manuals. This is something that cannot be accomplished with normal hand tools, and only should be done for race applications and by qualified persons. If you feel you need different spider shims for a race application , etc. you should consult your dealer or a qualified performance company with the proper equipment to carry out the procedure.
