Just talked to the GM parts guy here in Columbus, IN; these are listed as 'not Eaton'...

231260 $ 19.58 Preload S-spring
231127 $155.97 Clutch/Disc kit

D@mn! Ya I think I'll wait till mine is dead and I'll just get a new one; my breakaway torque of 28ftlbs isn't -that- far away from 35...

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Jeremy