Join Date: Jul 2012
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Stock 99-03 SD with ZF6 were a dual mass.
If its stock you still have a dual mass, if its not then most likely it has been upgraded.
If you need a solid flywheel i got a used one for sale. Only 30K on it and the only reason it was pulled is cause i had a gnarly HPOP oil leak and all the oil soaked my clutch plates and would slip. Flywheel is in great shape, no nicks, no dings and is not warped one bit.
I ordered a complete south bend not knowing what i was getting into and if i hadnt i wouldnt have even got my flyewheel turned before installing the new one.