Need a clutch to hold all of this power!!!!
Southbend is the only way to go in my opinion. I have a Con FE in mine and I have towed close to the max GVWR of the truck with 400+ hp and it works well for me. I put the clutch in @ 12K. mi and now have 53K. Southbend rates their clutches conservatively, they can hold more than they are rated for isn't that right IMills?
Great, exactly what I am wanting to hear. Also, for your last sentence, sounds as if IMills works at Southbend, or his "truck" works for South bend
.more, more, more, Keep em coming
This is what I am interested in. I am hoping it is quiet at idle with the pedal out. When the time comes, if I am told it is total overkill for my app., I will just get an OFE with a one piece flywheel. I want something my wife can drive and I love the stock pressure. When I am not wearing shoes, I can easily push the pedal down by pushing my big toe striaght into the pedal.
It seems like a dual disc would be able to hold more while having less pressure on my big-fat toe.
I am still here guys, and still listening. I want to hear from all walks of life.
So, we have a vote for a Haisley. Can you shed some light (your experience with it) on some details....how long have you had it in your truck, do any hauling, etc.....????
So, we have a vote for a Haisley. Can you shed some light (your experience with it) on some details....how long have you had it in your truck, do any hauling, etc.....????
I am not affiliated with South Bend clutch. I am also not trying to throw out a sales pitch. However I must be honest and say I am a vendor for them. I contacted Peter one day to talk about a clutch in particular and the subject came up about this new sprung hub design. After the conversation he had asked me to test it out for him.
We are currently in the second design. The first one engaged smooth and held all I could throw at it. The only compaint I had was that it was hard to get in gear at a stand still. After reviewing some thoughts back and forth between Peter, another Beta tester and myself, we came to the conclusion that some of the issues probably came from a center plate issue and some clearances that were too tight.
The result was a phase 2 that is better feeling on take off and shifting than the single that it replaced. I took 3 different people for rides in the truck today and had it not been for them knowing it was a double disk clutch, none of them could believe how smooth and quiet it was.
There is a very slight hint of rattle at idle. Not enough though to even make someone think it is a double disk clutch. And the only reason you can even hear it is because of how quiet the commn rail motor is. The positives are not just held to the quietness and smooth engagement, but also to the reduced wear on the drive train and transmission parts from the cushioning of the spikes as the clutch is released.
I can't say enough about it. It really has raised the bar on clutches. This is proof once again that South Bend is a step ahead and in the right direction at all times. More and more sled pullers have switched to them because South Bend has taken the time to listen and has given the people what they want.
We are currently in the second design. The first one engaged smooth and held all I could throw at it. The only compaint I had was that it was hard to get in gear at a stand still. After reviewing some thoughts back and forth between Peter, another Beta tester and myself, we came to the conclusion that some of the issues probably came from a center plate issue and some clearances that were too tight.
The result was a phase 2 that is better feeling on take off and shifting than the single that it replaced. I took 3 different people for rides in the truck today and had it not been for them knowing it was a double disk clutch, none of them could believe how smooth and quiet it was.
There is a very slight hint of rattle at idle. Not enough though to even make someone think it is a double disk clutch. And the only reason you can even hear it is because of how quiet the commn rail motor is. The positives are not just held to the quietness and smooth engagement, but also to the reduced wear on the drive train and transmission parts from the cushioning of the spikes as the clutch is released.
I can't say enough about it. It really has raised the bar on clutches. This is proof once again that South Bend is a step ahead and in the right direction at all times. More and more sled pullers have switched to them because South Bend has taken the time to listen and has given the people what they want.
The first clutch design was beat on for about 4,000 very hard miles, and I mean very hard street miles. The only reason I took it out was for Peter to look at it to check it for wear and to install an updated one to fix an issues we had with smoothness. Peter insisted that I beat the tar out of it if I were going to test it cause he wanted to know what it would hold in a worst case senario. As for numbers my truck is typically street driven daily around 675-680 HP. I have also towed with this clutch (about 7500 lbs) but on a lower setting(around 575 HP).
If you are hauling at the max GVW then you can expect that the numbers will be about right for what they are rated at, maybe a little less. If you run around empty most of the time and use common since( as in letting the clutch fully engage before laying into the throttle) then there is a good chance that the clutch will hold more than it is rated for. Another key factor in holding the power is installation. Keep grease and oil off of all surfaces and make sure the surfaces are flat and true. Also any oil leaks that get on the clutch will dramatically reduce the holding power.
That is somewhat correct. I felt as though I was very fortunate. My FE had almost 40,000 miles on it when I yanked it in favor of the dual disk. The truck had been at 600 HP or better most of it's life and the FE held almost all of it that it was fed.
If you are hauling at the max GVW then you can expect that the numbers will be about right for what they are rated at, maybe a little less. If you run around empty most of the time and use common since( as in letting the clutch fully engage before laying into the throttle) then there is a good chance that the clutch will hold more than it is rated for. Another key factor in holding the power is installation. Keep grease and oil off of all surfaces and make sure the surfaces are flat and true. Also any oil leaks that get on the clutch will dramatically reduce the holding power.
If you are hauling at the max GVW then you can expect that the numbers will be about right for what they are rated at, maybe a little less. If you run around empty most of the time and use common since( as in letting the clutch fully engage before laying into the throttle) then there is a good chance that the clutch will hold more than it is rated for. Another key factor in holding the power is installation. Keep grease and oil off of all surfaces and make sure the surfaces are flat and true. Also any oil leaks that get on the clutch will dramatically reduce the holding power.
Fantastic. Is there a part number on this dual disc you are referring to?? A price yet (you can send me a PM if you wish) Can not say enough thanks for the replies guys!!!
Well, checking out Black Cloud Diesel's website, they carry South Bend, and after reviewing the brief ad, part # MU1947 Con FE would be what I would need from a power stand point, 550HP and 1100 Lbs Ft of TQ. However, I need to know if I can haul (20K+ LBS) with that clutch.
I also want to hear of other clutch's out there. What about Spec? Centerforce?
Come on guys, overload my brain with some info on a cluch.
I also want to hear of other clutch's out there. What about Spec? Centerforce?
Come on guys, overload my brain with some info on a cluch.

I have nothing against SB, I just wanted to try something different, and I have several years of personal experience with SPEC in mustangs and other cars.
Well, the clutch is in and all went smooth, just got to put the interior back to gether and finish hangin my 5" exhaust and it will be back on the road.
I may have a slight problem but it is completely my fault so I may have to pull the trans again today but I am hopin not.
I have no experience or affiliation with either clutch manufactorers but will soon be driving with an SBC.
However I will echo what I have heard about Peter at SBC. Stand up guy, he has been more than helpful and went above and beyond the call of duty. I cant say enough good things about him.
With that being said I have spoken with Curt a hand full of times and I have to say I dont know how the follow up customer service would be, he has been very helpful and easy to talk to.
Neither Curt nor Peter have ever been pushy or had a "buy, buy, buy, buy a clutch form me" attitude. Both left me free to make my own decisions.
So with that bein said IF I had not went with SBC I think Haisley would have been my second choice.
And I didnt look past there so I dont know who my number 3 would have been.
I may have a slight problem but it is completely my fault so I may have to pull the trans again today but I am hopin not.
I have no experience or affiliation with either clutch manufactorers but will soon be driving with an SBC.
However I will echo what I have heard about Peter at SBC. Stand up guy, he has been more than helpful and went above and beyond the call of duty. I cant say enough good things about him.
With that being said I have spoken with Curt a hand full of times and I have to say I dont know how the follow up customer service would be, he has been very helpful and easy to talk to.
Neither Curt nor Peter have ever been pushy or had a "buy, buy, buy, buy a clutch form me" attitude. Both left me free to make my own decisions.
So with that bein said IF I had not went with SBC I think Haisley would have been my second choice.
And I didnt look past there so I dont know who my number 3 would have been.
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