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Dual Disk Clutch opinions; EEP, Haisley or SBC

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I'm looking for a new clutch. I've been reading through many threads on this site and others about the various dual disk clutches and am still confused as to what to get. I bought a dual friction clutch from diesel dynamics back in 1999 and it never held the power. This clutch was not a diaphram design and increased peddle pressure significantly. I am now ready to purchase one that has some real holding power, I am tired of this slipping clutch. After 5 years of this I want a new one that will perform like it should. I doubt I will do any pulling but, you never know...



Looking for opinions in the following areas for these clutches (EEP, Haisley or SBC):

1) How easy to shift?

2) Holding power?

3) Peddle pressure?

4) Reliability?

5) How long they last and are they rebuildable?
 
Olee Poole did a SBC Con FE install on my 01. Olee did a great job and I have no reservations about recommending him. He will take care of you.



Al
 
Can't comment about the clutch. But Olee is a top-notch guy. I have done business with him in the past and will definitely give him a call once I get some more $$$. Can't recommend him highly enough.



Dave
 
Specter said:
1) How easy to shift?

2) Holding power?

3) Peddle pressure?

4) Reliability?

5) How long they last and are they rebuildable?



1) Only driven a SBC DD, but they are all equally a little more difficult (i. e. longer shifting time) than a single disk.



2) This truck had about 400HP and that didn't phase this clutch at all! :-laf



3) Peddle Pressure was moderately more than stock, but no so bad as to where I wouldn't drive it everyday (and I'm a lightweight! :-laf )



4) I still see SBC working some bugs out of their pulling clutches (DD's), but Peter is desperately working to eliminate those problems and going above and beyond his call of customer service in doing so.



5) Couldn't quite tell you how long they last, but all 3 major clutches are rebuildable.



That being said I have heard first hand comments from a EEP clutch customer and he said that the clutch is too grabby and not as streetable as he would like. Maybe he will chime in here (I will PM him ;) )



I also have a friend in KY that runs the Haisley Street Puller and loves it, a very consistant truck, and almost always finishes in the top 5 when he pulls (and he pulls with the big boys! :eek: )



My suggestion is call all three companies and explain to them your plans for the truck and see what they say.
 
I have an EEP twin disc in my truck, no problems at all, easy to install, pedal pressure is firm and will build up your left leg. I really wouldn't say it's grabby. It's holds up to a tad over 800hp though.
 
The only one I have experience with is the EEP.



Shifting - slower than single - all the DD's will be - you get used to it

Holding Power - very strong, don't imagine you will ever have a problem, if you don't pull regularly with lots of power, probably won't ever hurt it.

Pedal Pressure - pretty heavy - again, you get used to it - seems normal to me now.

Reliability - never had any problem

Rebuildable - yes



I do some pulling with mine and also use it to tow a heavy trailer and drive regularly. My opinion is that engagement is better than high performance singles. It makes some noise when the clutch is pushed in, nothing to get excited about though. All in all it is a no nonsense, very strong clutch that can take a lot of abuse. The performance advantage is worth the few tradeoffs you have with it. I have heard that the Haisley's are good too, but don't have any personal experience. As for SBC, as others said, he is still working on a few things with those - don't know much else.



If you want a clutch that will surely hold your power and don't mind some added pedal pressure - the EEP will not let you down. That is my experience.
 
I must be the only onw with a not so good EEP clutch it holds great and is great for sled pulling but thats about it in my case anyway it is so grabby in 1st gear with a loaded trailer that it is almost enough to break driveline parts and shifts so slow that I lose all momentum when towing even shifting at 3-3200 rpms Im not harping the clutch but mine is not a desierable street clutch, the pedal is not bad at all, Haisley has a good DD clutch 2 of my friends run there street puller and they really like them smooth engagment a little slow to shift but not bad, SBC has many different DD clutches to choose from and if I were going to just drive and tow I would definatly get one from them they have great products and even better customer service, I wish now that I would have waited a little longer to buy my DD I may have got one from SBC. Which everone you do choose to go with be sure to get the 1 3/8 input shaft its a must for sreet or comp. Hope this helps someone.
 
Definately NOT a problem with slippage on an EEP DD... ... at least not at my power level! It's a little noisy, kinda grabby backing up with a load or 8k 5th but, I'd definately do it again.



I met Olee when he was just gettin' started in the diesel business... ... I think I made a GOOD friend and he is a top notch guy. He has alot of knowlageable, well known, business owners backing him in the diesel world.
 
Peter backs his clutch up. I have destroyed two dual disks so far. Evidently trying to leave the line at 30 lbs of boost isnt too clutch friendly. It has cost me roughly $500 to rebuild each time which I think is really reasonable. Peter has several versions of his clutch each w/ different pedal pressures, holding power, etc.
 
Well turns out I'm getting my Dual Disk sooner than I though.



Picking up a used ( 1 month old, no pulls) SBC Dual Disk next week. 3850lb plate load 12 ceramic button disk's. I can't wait to get this thing and get it installed! Oo.
 
RSergeant

I've had an EEP DD for more than two years even with a missing bolt that aligns the floater plate mine has never let me down. Pedal pressure a little bit heavier. One thing that has kept me going back to there product, is Dave and Loretta will take care of you.
 
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