Who has slipped their SBC or aftermarket clutch?

[daytripper63]

I remember reading on the forums a while back about a few people saying they could slip their aftermarket clutches, my question is to those who have slipped their clutches; are you running oversized tires like 35" 36" etc and what clutch are you running

 

[jwilliams3]

Are you thinking about getting a South Bend Clutch?

How is your Centerforce holding up?

 

[daytripper63]

Are you thinking about getting a South Bend Clutch?

How is your Centerforce holding up?

It has held up great I dynoed over 400hp and 879ft lbs tq no slippage, but now with these 22. 5" big rig wheels which measure36" tall and I am sure they are heavier than regular 36" tires, but last night I had my TST on 6-4 and in 4th gear I slipped the clutch. I figure it is a combo of things like the 22. 5" wheels, the change in gearing that is associated with going up to a 36" tall tire with my 3. 73 gears and the rotating mass of the new wheels.

I would really like to know who else has done this after going to bigger diameter wheels

Plus I am suppose to be going in for 75hp injectors, a bigger turbo and a FASS set up next week but if I can slip the clutch now none of this will do me any good

 

[jwilliams3]

IF you are not going to sledpull then I would suggest a "STREET" Dual Disc from South Bend Clutch.



That will hold everything you can throw at it.



If you want to start Sledpulling then get a SBC DD 3850 12CB or 3850 12FE.



Check that:



http://www.southbendclutch.com/dd.html

 

[daytripper63]

IF you are not going to sledpull then I would suggest a "STREET" Dual Disc from South Bend Clutch.



That will hold everything you can throw at it.



If you want to start Sledpulling then get a SBC DD 3850 12CB or 3850 12FE.



Check that:



http://www.southbendclutch.com/dd.html

Do youy think the tire diameter change and gearing change due to tires is the problem and SBC will hold up?

 

[daytripper63]

IF you are not going to sledpull then I would suggest a "STREET" Dual Disc from South Bend Clutch.



That will hold everything you can throw at it.



If you want to start Sledpulling then get a SBC DD 3850 12CB or 3850 12FE.



Check that:



http://www.southbendclutch.com/dd.html

I almost forgot, howis it for towing is it jerky? when taking off or backing up

 

[jwilliams3]

The street version should be pretty smooth since it uses "normal" type clutch material.

Its only when you start getting into the heavy puck ceramic and feramic that you will get a little jerk here and there.



The SBC DD will hold up no sweat.



Yes, a larger tire, heavier trailer, more power always creates more of a load for a clutch and eventually will lead to a pre-mature failure if your clutch is not up to the task.



Hopefully some others with SBC dual discs chime in on the towing advice.

I have towed only lightly with mine (other than a sled) probably about 8k lbs and it did fine.

But I probably have too much clutch for everyday towing being that it is the 3850 DD.



You can always call Peter @ South Bend he is always willing to talk clutches!

 

[RonA]

I wouldn't recommend the FE. I had an OFE and while it was holding fine at 500hp, I figured it was a matter of time. I installed an FE and at the same power level it slips anytime I hit the throttle hard in 5th or 6th gear. The DD is probably the best way to go.

 

[Smokin_Monster]

I have a Luk Pro Gold and 35 inch tires and I can slip it pretty easy. Most of my mods came after the 35 inch tires so I am not sure how much is the tire size and how much is the SP66 and my right foot. . Not too much driving around but sledpulling or racing will slip it pretty good. But I have a SBC 3850 12FB DD sitting here waiting for a nice weekend to be put in.

 

[JCleary]

I have a SBC street dual disc, and it holds my power levels just fine. It can be a bit grabby at times, but I think it's more due to the fact that I need traction bars, not the clutch's fault.



The nice thing about the street dual disc is that the rotating mass of the two discs is about the same as the single disc FE, so shifting is not as slow as with a ceramic or feramic dual disc.



If I had to do it again, though, I'd go with the FE and save myself about $800. I can definitely skip the rattling, and when it comes time to trade the truck in or sell it I don't have to explain what all the noise is.

 

[Highfinance97]

I have the 3850lb South Bend DD and its nice. it dosent chatter and as for backing up not bad at all. Oo. My Con Fe chattered a lot



here is Highfinace97's 3850 DD

 

[lmills]

Fe is holding great in this one. The last truck the FE slipped, but that was from a rear seal leaking oil onto.

 

[Joseph Donnelly]

I'm happy with the South Bend Con-Fe. The LuK Cerametallic slipped at 480 hp.

 

[SMorneau]

I had a LUK pro gold and I could slip it with no mods just 255-85 tires. Usually if I hit 3rd gear really hard it would slip. The pro-gold I had was one of the first (possibly the very first) they ever sold under the pro-gold name for Dodge trucks so the new ones may be better.