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M90 coupler

jc71corvette2

New member
Ok doing my research here and i thinj my coupler is bad on my 98 gtp. It rattles on idle then you hit the throttle it stops. My question is this: it doesnt rattle untill 5 min idle is this the coupler
 


If you searched more, you'd find out the sure-fire way of determining if it is the coupler.


Pull the S/C belt off. Spin the pulley back and forth, if it has play, coupler is bad.
 
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