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  Topic Review (Newest First)
06-13-2019 03:02 PM
gun32gtr yeah thats an idea also. i might give them a call today from work. They maybe able to re face my clutch disc
06-13-2019 07:49 AM
Blackduck59 Might pay to have a chat with Clutch Industries here in Aus, they may an option for you.
Cheers Steve
06-12-2019 10:11 PM
gun32gtr yeh will be a pain having the truck off the roiad again but i have no choice
06-12-2019 09:58 PM
Destroked 450 Not sure if a stock organic Luk clutch will hold up to the Cummins torque.
Best to pull yours and see what's going on before ordering parts.
06-12-2019 08:50 PM
gun32gtr I wonder if i can get a stock luk clutch disc and use my south bend pressure plate? They are in stock in AUS..

I can imagine the stock LUK clutch would be alot cheaper 2 that the sb clutch
06-12-2019 05:33 PM
Destroked 450 Mine has a stock Luk pressure plate and a kevlar/ceramic disc, prier clutch had a stronger plate with a kevlar/organic disc.
I slipped the prier clutch badly once but that was my fault, I just didn't like the high pedal pressure the stronger plate caused.
06-12-2019 04:30 PM
gun32gtr Mate that's my thoughts exactly. The more i read the more i regret buying the southbend kit. I was speaking to a guy on the fummins page on facebook and is using a stock zf6 clutch and its holding 380 odd horsepower and has done for a long while,plus he tows heavy loads like yourself. I might be bettr off just getting a stock clutch which i think is a LUK clutch and be done with it.

They want me to pull the clutch so they can see it and tell me if i need a whole clutch or just less aggressive clutch disk? So in other words they are not sending me anything for free thats for sure..

The problem i have is the website states the clutch is not for standard power trucks. But it never said anything about why it isnt for stock powered engines. At a guess mines 240hp but could more could be less i dont know till my afc live shows up and i tune and dyno it.

Regardless in all my years with different performance cars all being manuals ive always had more aggressive clutches than needed and always had great succsess
06-12-2019 10:33 AM
Destroked 450 That's a load of bull!
Yes it will be a little aggressive (grabby) but it won't slip like they're saying.
Pull the trans and check for oil on the clutch.
06-12-2019 12:11 AM
gun32gtr If you are only pushing 240HP, then that clutch is more than likely to
aggressive for you application.
It is rated for 475HP and if you are running more at stock power then
the clutch wont seat in correctly and begin to slip like it has.

Your best option would be to switch to a full organic clutch kit instead
of the OFE

This is southbends response to my clutch slipping.. What does everyone reckon
06-06-2019 12:32 AM
gun32gtr Im looking pulling the box asap well on my next run of 5 or more days off.
06-05-2019 06:08 PM
Destroked 450 Just a little oil on the feramic side will cause the clutch to slip like crazy, as long as the organic side isn't oil soaked it'll be ok.
If you find it does have oil on the clutch give it a good cleaning with brake clean spray cleaner.
06-04-2019 10:41 PM
gun32gtr
Quote:
Originally Posted by Destroked 450 View Post
If the rod was long enough to put enough pressure in the plate to cause the clutch to slip, one wouldn't be able to install the clutch slave cylinder by hand.
A rear main seal will be slung out by the flywheel and usually doesn't get much oil on the clutch.
A leaking trans input shaft seal will allow oil to leak directly onto the clutch disc.
I've had a leaking trans seal cause clutch slippage on a high performance car and a couple of my farm tractors.

you know what i had this very thought the other night laying in bed wondering if the input shaft seal was shot.. ID reckon its gearbox out job for sure. if this seal is shot i hope its not wrecked the clutch plate. half organic half feramic so fingers crossed it dries out
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