Seems that recently they have discontinued the harmonic balancer for the CRD and is out of stock everywhere...

Well just in time for mine too go and the dreaded marbles at idle to kick in...

Any leads?

Check this thread. Summary: be prepared to send it out for rebuild; unless there's a bunch of NOS dampers laying around somewhere waiting to be discovered, this is pretty much the only option at this point.

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2005 KJ CRD Limited 4x4:
245/75R16 BFG TA KO2s
OME / Clevis 2.5" Lift
JBA Lifted A-Arms
IRO WJ Short Rear UCA/WWDiesel mount
Skid Row Skidplates
HDS Model 001 Thermostat (190°F)
Suncoast TC
Full Weeks Kit
Bosch 5V glow plugs
Hayden 2986 fan clutch / GM 11-blade fan
Samco / Sasquatch Intake Hoses
Carter in-tank pump
Provent 200
V6 Airbox

Yet again what I preach to all my customers at work and what most higher level techs know... planned obsolescence... over the next 10 years they’re going to continue to reel all the parts back pretty soon you won’t be able to get anything for it that’s why I’m working on making sure I have two of all the important items sitting on my shelf... makes me sad too... it’s the plastic and one model only crap that will kill a platform


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So ended up ordering a used one from the UK... Plan is to run that why I send my original in to be rebuilt... Funny thing is that the noise and all go away once engine is at operating temp... Only to return after cool down...