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01 OUTBACK VDC H6
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Discussion Starter #1
Can anyone explain how to inspect a used Sub viscous coupling on the workbench to determine if it is good?
 

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The viscous coupling is built into the differential case, it's not a separate part in the manual transmission (at least not since about 2000).

As far as I know, there's no way to inspect (test) the coupler for proper operation without using some sort of test stand that can simulate the operation of the differential on the bench.
 
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