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Old Aug 30, 2017 | 11:18 PM
  #31  
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Not sure what the hubbub is about. The current rod design has given good service since 2011. Plenty of those trucks are running well above stock power levels on stock pistons and rods. This looks like getting tooled up for a power increase to me but unnecessary at the current power levels.
 
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Old Aug 30, 2017 | 11:27 PM
  #32  
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Perhaps the second design rod has a different part number and or rev. number in contrast to the 2011-2016 one?
 
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Old Aug 30, 2017 | 11:32 PM
  #33  
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I am going to laugh if this turns out like the 7.3 rods where the older ones are actually better.
 
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Old Aug 31, 2017 | 06:25 AM
  #34  
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Originally Posted by Karl4Cat
As speculated, this isn't an issue with the current 6.7's that aren't tuned. It's just a preparatory move to get ready for the 2019 power bump.
That makes no sense to me. That new connecting rod is presumably more expensive to make. Ford would have no reason to start spending more on engines making the same output as Job 1 trucks...unless they are seeing a problem. I can't think of any time in the past Ford has installed heavy-duty engine components "in preparation" for some future engine output. I'm extremely doubtful Ford will do a reflash of current engines for more power...there's no need at all. To beat RAM by 5 lb-ft? Ridiculous.

My theory is that perhaps a few 2017 engines have failed with rod issues; Ford studied it and saw a problem that could become widespread over time. Thus, a stronger part starting with Job 2 to stem the potential number of affected trucks.

They may figure most Job 1 trucks will likely make it past the 100k warranty, and some may make it a lot further than that. Replacing rods is very expensive.

But that's just my theory and could be completely wrong.
 
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Old Aug 31, 2017 | 08:12 AM
  #35  
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Originally Posted by troverman
That makes no sense to me. That new connecting rod is presumably more expensive to make. Ford would have no reason to start spending more on engines making the same output as Job 1 trucks...unless they are seeing a problem. I can't think of any time in the past Ford has installed heavy-duty engine components "in preparation" for some future engine output. I'm extremely doubtful Ford will do a reflash of current engines for more power...there's no need at all. To beat RAM by 5 lb-ft? Ridiculous.

My theory is that perhaps a few 2017 engines have failed with rod issues; Ford studied it and saw a problem that could become widespread over time. Thus, a stronger part starting with Job 2 to stem the potential number of affected trucks.

They may figure most Job 1 trucks will likely make it past the 100k warranty, and some may make it a lot further than that. Replacing rods is very expensive.

But that's just my theory and could be completely wrong.
There have been a few rod and crank failures in the 6.7. However it has not been widespread or endemic to the 6.7.
I agree that Ford, or any other manufacturer, would not spend money if they didn't anticipate some kind of problem.
 
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Old Aug 31, 2017 | 09:30 AM
  #36  
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Wondering if the CJ-4 VS the CK-4 oil is involved somehow.
 
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Old Aug 31, 2017 | 09:33 AM
  #37  
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Originally Posted by HouseMouse
Wondering if the CJ-4 VS the CK-4 oil is involved somehow.
I doubt it.
But perhaps that is why they changed bearing material somewhat.
 
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Old Aug 31, 2017 | 11:53 AM
  #38  
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Part #

Found this from my Ford parts friend.

Part # for con rod prior to Jan 2016 is BC3Z-6200-A
Part # after Jan 1st 2016 is HC3Z-6200-A

So there is a difference!
Unfortunately, no pictures.
 
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Old Aug 31, 2017 | 12:05 PM
  #39  
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I wonder why the new one is so cheap. If cost is any sign of quality it looks like this may be a downgrade.
 
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Old Aug 31, 2017 | 12:08 PM
  #40  
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Originally Posted by RedRage
Found this from my Ford parts friend.

Part # for con rod prior to Jan 2016 is BC3Z-6200-A
Part # after Jan 1st 2016 is HC3Z-6200-A

So there is a difference!
Unfortunately, no pictures.
Check the date...that wouldn't make a difference to the 2017 Job #1/#2 trucks as some speculated.

Originally Posted by A&Pmech
I wonder why the new one is so cheap. If cost is any sign of quality it looks like this may be a downgrade.
Maybe because the older part is out of production and there are fewer around?
 
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Old Aug 31, 2017 | 12:40 PM
  #41  
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Originally Posted by A&Pmech
I wonder why the new one is so cheap. If cost is any sign of quality it looks like this may be a downgrade.
maybe, but I highly doubt ford would go backwards at this point durring a "change" in production.
 
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Old Aug 31, 2017 | 12:40 PM
  #42  
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Price and dates aside, the real question is...why? Clearly, from the pics, there is a difference.
 
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Old Aug 31, 2017 | 12:54 PM
  #43  
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picture

The beam looks wider in one direction but thinner in the other.
I would not be surprised if the weight is the same between
the two like Ford just moved material around.
 
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Old Aug 31, 2017 | 01:02 PM
  #44  
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Originally Posted by RedRage
Found this from my Ford parts friend.

Part # for con rod prior to Jan 2016 is BC3Z-6200-A
Part # after Jan 1st 2016 is HC3Z-6200-A

So there is a difference!
Unfortunately, no pictures.
So does this mean both #1/#2 Jobs use the same rod? I'm now confused?

This would make sense since the ads at the time claimed new rods for 2017 Fords. Anyone open up a Job #1 engine yet?
 
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Old Aug 31, 2017 | 01:15 PM
  #45  
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Originally Posted by RedRage
I would not be surprised if the weight is the same between the two like Ford just moved material around.
Again, for what reason?
 
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