New sdd3250 dual friction dual disc - Dodge Diesel - Diesel Truck Resource Forums

New sdd3250 dual friction dual disc

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Old 03-09-2012, 11:57 AM
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New sdd3250 dual friction dual disc




• We at South Bend Clutch heard the call for the organic dual disc clutch but wanted to offer the best in both durability and drive-ability. How do we achieve that? In our 50 years of experience we knew that running an all organic dual disc would have it’s problems. The intermediate (center) plate is approximately ½” thick whereas the pressure plate and flywheel castings are three times that. Running two friction surfaces on one thin casting will increase the temperature to that casting. Organic burn point is approximately 550 degrees whereas ceramic can reach 1100 degrees. The immediate engagement points when the clutch is released for takeoff are the outside points of a dual disc clutch, pressure plate and flywheel. Being that there is only one friction surface running to these two points, and the fact that the pressure plate and flywheel castings are much thicker than the center plate, the temperatures cannot reach that of the center plate. This is why organic will work to the pressure plate and flywheel and not to the center plate.
• We at South Bend Clutch feel we have reached a milestone in the clutch industry and hope that you will enjoy our hard work at being the industry leader in research and development of clutches for the diesel market.
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Old 03-09-2012, 03:57 PM
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Neat! Can't wait to hear the user's reviews. Will these retail for about the current 3250 DD price?
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Old 03-09-2012, 04:08 PM
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Originally Posted by Danderson View Post
Neat! Can't wait to hear the user's reviews. Will these retail for about the current 3250 DD price?
Cost us bit more to make but we are keeping the prices the same. We have already put 500-600 in vehicles and have had fantastic feed back.

Peter
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Old 03-09-2012, 06:40 PM
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Originally Posted by South Bend Clutch View Post
Cost us bit more to make but we are keeping the prices the same. We have already put 500-600 in vehicles and have had fantastic feed back.

Peter
Hey Peter, just curious.

When I spoke with you about the 3250 vs the 3600 you told me that the new style was coming out. I went with the 3250. I was just wondering when yall started putting them out in the public. Mine went in the truck in December. Probably not the same clutch, but, man I love it none the less.
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Old 03-21-2012, 12:33 PM
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We need a clutch for the G56 and are now thinking about the 3250 but have heard of rattle while backing up with a load? Perhaps this was the old style. If so just wondering how to tell the difference between the old and new?
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Old 03-21-2012, 02:15 PM
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Rattle is caused from the pulses in your engine and they were a problem on the old style clutches...Southbend has come a long way in quieting those down and this NEW clutch is available form the DTR Store
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Old 03-21-2012, 03:53 PM
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Originally Posted by Lary Ellis (Top) View Post
Rattle is caused from the pulses in your engine and they were a problem on the old style clutches...Southbend has come a long way in quieting those down and this NEW clutch is available form the DTR Store
I previously looked in the DTR store and all that appears to be there is the old 3250 with ceramic on both sides or is that really the new one and the organic side is not show or mentioned in the description?
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Old 03-22-2012, 09:19 AM
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Same clutch...the new style replaces the old style..I just haven't updated the caption
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Old 03-22-2012, 12:00 PM
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Originally Posted by Lary Ellis (Top) View Post
Same clutch...the new style replaces the old style..I just haven't updated the caption
Thanks... Ordered today.
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Old 03-22-2012, 02:07 PM
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Is this offered for the Getrag 360 in a 1st gen?
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Old 03-26-2012, 12:09 AM
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Can always expect a great product from Southbend. I hear nothing but good about them. On that same note, the single disc Con OFE on my 1st gen with an NV5600 is holding up very well with just over 2 years on it!

Thank you, Peter and Southbend! Keep up the great work and innovation!
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Old 03-29-2012, 06:26 PM
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This is what I will now be ordering this summer!
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Old 12-04-2012, 07:25 AM
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We have one of those new ones behind a 525 hp 6.7 truck that mainly sees towing - it backs easily and has never slipped loaded or otherwise. It drives nicer than stock too. I love it so far. I am working on talking the old man into a fluidamper to help the neutral rattle.

Last edited by jstone44720; 12-04-2012 at 10:40 AM. Reason: spelling
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Old 12-04-2012, 09:51 AM
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This is good news. I'm on the fence between their new Con OHD or the new dual disc. I need a smooth engagement especially in reverse. I don't have a free spin kit and can't use low range backing under my cabover.

I've driven one 3250 with the older pre-neoprene noise isolators before. Manners were pretty neat but the racket killed it for me.

I'll be ordering one or the other through the store here come Spring. We'll be heading into northeastern AZ and up to southwest Colorado. I definitely don't want the clutch slipping A 11,000'.

Any other reviews out there on the new dual disc or Con HD?
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