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Old 04-03-2011, 09:52 PM   #1
97' CTD
 
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6.7 Dampner on a 5.9

People say it works, the OD of the balancer is larger than the OD of the 5.9 balancer and it hits my fan pulley........ Anyone? How thick is the shell of the dampner can I hit it with a mill and take a few thou off or is the dampner shell to thin? Thanks.
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Old 04-03-2011, 11:02 PM   #2
srt cummins

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so the 5.9 will work on the 6.7?
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Old 04-03-2011, 11:14 PM   #3
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you have to run the 5.9L fan pulley and our good to go
 
Old 04-03-2011, 11:27 PM   #4
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Where do you find a 6.7 damper?
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Old 04-04-2011, 12:00 AM   #5
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i sold it to him.
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Old 04-04-2011, 05:51 AM   #6
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Money is in the mail also!!!!!
Brandon
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Old 04-04-2011, 09:22 AM   #7
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You need the 6.7 fan pulley, it has a backset to just clear the balancer.
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Old 04-04-2011, 09:23 AM   #8
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Quote:
Originally Posted by bdp View Post
You need the 6.7 fan pulley, it has a backset to just clear the balancer.
Thanks Bean will the 6.7 pulley fit the 5.9 fan hub?
Brandon
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Old 04-04-2011, 11:10 AM   #9
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The 6.7 damper is 1/4" thicker than the OEM 5.9 (not including integral reluctor wheel), but it's 3/4" larger O.D. - even with the tapered shoulder - won't clear the 5.9 fan pulley w/o removing ~.080" of the shoulder's peak... you can also move the idler/fan pulley bracket.

All parts interchange by themselves, but as you've found they don't always mix & match together.
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Old 04-04-2011, 12:57 PM   #10
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what's the benefit here?
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that's pretty much all of it
 
Old 04-04-2011, 01:54 PM   #11
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Superior damping of the crankshaft's 3rd, 6th & 9th torsional deflection harmonics.
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Old 04-04-2011, 02:48 PM   #12
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ever heard of a FLUIDAMPER?
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Old 04-04-2011, 03:21 PM   #13
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Quote:
Originally Posted by Townsend600 View Post
ever heard of a FLUIDAMPER?
I'm guessing everyone reading this thread has heard of the high $$$ aftermarket dampeners on the market.

I believe the basic thinking with installing a 6.7 dampener is it works better than the stock 5.9 dampener and can be purchased used for much less than an aftermarket version.
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Old 04-04-2011, 03:30 PM   #14
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Yep all 6.7s come with a Fluidampr-style viscous damper. How they compare to Fluidampr I can't say but the 6.7 one has to be quite an improvement over the traditional style damper that all 5.9s came with.
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Old 04-04-2011, 03:31 PM   #15
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FluiDampr:

At ~ 9.18" O.D., it's 2.5" high 90* shoulder clears a 5.9L pulley by ~.075", but it still lacks over 3lbs. on the OEM 6.7L part... although either is over 50% more massive than the 5.9CR's.
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Old 04-05-2011, 01:33 AM   #16
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Found a Mopar PN for the 6.7 damper, 68005166AA

Best prices I could find googling a bit was $272 from Mopar Parts Center in Tampa FL and $269 from Dodge Parts Mopar.com
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Old 04-05-2011, 11:16 AM   #17
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Quote:
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ever heard of a FLUIDAMPER?
U pay for it I will take it, And yes I have this isnt my first rodeo bud.
Brandon
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Old 04-05-2011, 01:58 PM   #18
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Thanks for the info I need a new and will now try and find the parts from a 6.7.
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Old 04-05-2011, 03:50 PM   #19
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I have a stock damper but my truck is internally balanced. Should I worry about getting a better damper?
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Old 04-05-2011, 04:02 PM   #20
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Subscribing.
 
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