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Dual Mass Flywheel

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Old Mar 9, 2006 | 09:50 PM
  #1  
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Dual Mass Flywheel

I would have searched but it was disabled so maybe someone can help with this. I am no newcomer to auto mechanics but this is my first Diesel (I always talked them down due to my ignorance of them) and now that I own one I wish I had gotten one long ago. It is a '96 F-350 man. trans.4X4 A week ago the fuel heater shorted out and left me along side the road and I took it to a local and reputable diesel shop they unhooked it and replaced the fuse and replaced the belt tentioner and when I picked it up they said I would need a new flywheel soon. Said as it got worse it would eventually take out the input shaft to the trans. They said the transmissions get the blame for being bad but really the flywheel is the culprit. Anyway they said they have a non-dual mass flywheel that will fix this. My question is, is this the way to go or should a guy go back with the original style flywheel?
Thanks in advance. (by the way this is my first post and I hope this isn't something that has been asked to death.)
 
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Old Mar 9, 2006 | 10:02 PM
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this has been a common problem with the dual mass it wears out as the friction wears out.

the majority of us with manuals have gone to a single mass fly wheel.

i like the lighter more consistant pedal, and the ability to hold more hp and last much much longer.

i run clutches from southbend clutch but luk is another popular single mass conversion.

the single mass will be a little louder but it has never bothered me. that has been about the only drawback i have found in them. i have 2 trucks that have had single masses in them for many years with no ill effect.
 
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Old Mar 10, 2006 | 12:23 AM
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Definatly go with the single mass flywheel. You can get the flywheel, and clutch set up from LUK for less than just the stock flywheel. And I promise you will like it alot better.
 
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Old Mar 10, 2006 | 08:09 AM
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The Luk unit is definately the better way to go. The Luk offers higher torque capacity, smoother pedal feel and better durability. Give me a call if you have any questions.
 
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Old Mar 10, 2006 | 08:51 AM
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Difference between South Bend and Luk

I was just wandering what everyone prefers on clutches, South Bend or Luk. What are the major differences between the two, including price?
 
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Old Mar 10, 2006 | 09:07 AM
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The Luk solid flywheel replacement is 540 + shipping. You may also want to consider replacing the clutch fork 30.00, slave and master cylinders 130.00. Southbend also uses the Luk in many of their diesel applications and then modifies them some to handle the power of modified trucks. Luk also has a heavy duty line available for this as well. With a stock truck the standard Luk upgrade would be a good selection without overkill. Let me know if I can help.
 
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Old Mar 10, 2006 | 10:29 AM
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i run the southbend cause the luk can hold the hp of my truck. i think the SB has a more consistant pedal and engages at higher rpms, where the luk slips.
 
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Old Mar 11, 2006 | 11:49 PM
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Interesting reading since I am nearing a replacement. Hope to hold off till the weather is better. Hey Barebackjake- what did you mean the single mass is louder? What is louder, the engine or the clutch?
 
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Old Mar 12, 2006 | 12:37 AM
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Originally Posted by mr clutch
Southbend also uses the Luk in many of their diesel applications and then modifies them some to handle the power of modified trucks.
thats exactly why i went with an sbc con ofe. you can read about how they modify it on there page.
 
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Old Mar 12, 2006 | 07:45 AM
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Guys,
Thanks for all the input, I will go back see what brand they use. They told me it would cost $1,050.00 to do this. I will find out if that is parts and labor or what.
 
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Old Mar 12, 2006 | 09:37 AM
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From: STEPHENVILLE,TX!!!!!
the design of the dual mass was intendended to absorb some of the vibration of the diesel motor.

the single mass setup uses the friction pack to absorb theese vibrations so it has to go through the single mass flywheel which turns some of the vibration into sound. it is a very small amount but there are a very few amount of people that it really bothers. but that is a very very small group.

but the advantages of the single mass are very well worth a little more noise.

that $1050 sounds about right for an installed single mass luk or sb con o round $600 ish for the clutch and its 6-8hr install dependant on 2wd or 4wd.

i like the kevlar throw out bearing on the sb's too never have to worry about that going out or making noise or sticking on the shaft.
 
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Old Mar 12, 2006 | 05:48 PM
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The standard LUK repset can handle more HP that it is possible to make with an OBS truck with stock injectors. It's a very worthwhile mod IMO, especailly at the price quoted by mr clutch. As pointed out earlier, that's the entire conversion kit for about what a stock replacement flywheel costs.

Welcome to Ford Truck Enthusiasts Lowdog!
 
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Old Mar 13, 2006 | 04:54 PM
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Called the diesel shop today and they use Luk $1050.00 installed. Called another place and they use Rhino $1375.00 installed. Guess where I'm going? Thanks to everyone for the input, I will let you know how it turns out.

The lowest of all dogs, Lowdog.
 
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Old Mar 13, 2006 | 07:41 PM
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how about a con ofe and install it yourself for 900.00????????
 
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Old Mar 13, 2006 | 07:44 PM
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How difficult was it for you to put your SBC con ofe in?? I'm pretty mechanical but have never put a clutch in. Just wandering about how long it would take to do it yourself.
 
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