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1994.5 - 1997 7.3L Power Stroke Diesel  

Clutch disk help.

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Old Oct 25, 2014 | 04:50 PM
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Clutch disk help.

Hi guys. I bought a core motor a couple of years ago and finally looked at the clutch on it. The one in my truck is shot and I thought maybe it has a decent clutch, well sure enough it has a solid flywheel with a Luk clutch. I would like to buy just the disc for it, anybody know where I can get just a disc? Napa could not get the disc from luk separately. Oh, and its a 13", not sure of the stock size.
 
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Old Oct 25, 2014 | 09:03 PM
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Maybe go to Luk's website and see if they offer just the disc. Rock Auto has a disc only, but it's not a Luk, it's a SACHS.
 
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Old Oct 26, 2014 | 08:44 PM
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I would put a disk and pressure plate
 
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Old Oct 27, 2014 | 04:59 AM
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Originally Posted by fordpride
I would put a disk and pressure plate
Yeah....you're right. I think that may be why I'm having my clutch issues.
 
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Old Oct 27, 2014 | 06:59 PM
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I always see two sizes for clutch disks on these trucks. 12" & 13"

Which trucks came with 12 and which with 13?
Is there a way to tell w/o pulling the tranny?
 
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Old Oct 27, 2014 | 07:27 PM
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I just put my luk clutch and tranny back in my project truck last night. Could have answered this better the , but a measurement from the ring gear to the clutch disc and some math oughta tell you the diameter. I believe there are windows in the pressure plate to see the disc with the inspection plate off the tranny. Anyone the ring gear diameter off hand? I'll measure a flexplate I have in the barn tonight if not.
 
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Old Oct 27, 2014 | 09:31 PM
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Originally Posted by williameub
I always see two sizes for clutch disks on these trucks. 12" & 13"

Which trucks came with 12 and which with 13?
Is there a way to tell w/o pulling the tranny?
The 12" is for the original dual mass flywheel, all of our trucks came from the factory with those time bombs in them. The 13" is for the solid flywheel conversion. You can pull the inspection cover off the bottom of the bell housing and see if it still has the dual mass (two piece) flywheel, or if it has been converted to a solid (one piece) flywheel. If it still has the dual mass flywheel in it, I suggest converting it to a solid flywheel. The dual mass are notorious for coming apart, and can take the trans out with it. It's not a matter of IF they come apart, it's a matter of WHEN! That's why they are ticking time bombs.
 
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Old Oct 27, 2014 | 09:55 PM
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Originally Posted by ReBilld
The 12" is for the original dual mass flywheel, all of our trucks came from the factory with those time bombs in them. The 13" is for the solid flywheel conversion. You can pull the inspection cover off the bottom of the bell housing and see if it still has the dual mass (two piece) flywheel, or if it has been converted to a solid (one piece) flywheel. If it still has the dual mass flywheel in it, I suggest converting it to a solid flywheel. The dual mass are notorious for coming apart, and can take the trans out with it. It's not a matter of IF they come apart, it's a matter of WHEN! That's why they are ticking time bombs.
Thanks!

I was aware of the DMF failures and that's one of the things I always get rid of on these trucks.
Haven't had one explode on me personally but I've seen the aftermath.... Not pretty and defiantly not cheap.
 
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Old Oct 28, 2014 | 07:05 AM
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The folks @ Carolina Clutch treated me real well and it seems they have a good relationship with LUK; I'd start there...
 
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Old Oct 29, 2014 | 10:47 PM
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Originally Posted by coreyallan01
The folks @ Carolina Clutch treated me real well and it seems they have a good relationship with LUK; I'd start there...
You have to pay shipping? I think I am just going to get a whole clutch kit and be done with it.

Anybody know why RockAuto is saying to replace the clutch master and slave with LMC176 and LSC158 with the LuK clutch kit?
 
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Old Nov 12, 2014 | 07:59 AM
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Well I just bought a Luk off of amazon for a $198 shipped. Should be here tomorrow.
 
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Old Nov 12, 2014 | 08:20 AM
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Originally Posted by blue66tang95f150
Well I just bought a Luk off of amazon for a $198 shipped. Should be here tomorrow.
Nice! That's a decent price. You'll be happy with the pedal feel..
 
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