alright im in the market for a new clutch now because mine is slipping and i want to get injectors and dv's so i need a new clutch before i get them, so i am going to get a valair just because i dont want to spend $1500 on a southbend, i know there where its at for clutches but i aint heard nothing bad about valairs. i need to know what the difference between the economy 13" and the premium 13", also i am undecided between the organic feramic, full feramic, or ceramic, can you guys give me the pros and cons of each, thanks guys heres there site for reference

http://www.valairinc.com/performance/12nv4500.html

 

I like the prices as well and I'll be watching this thread closely as well because I'm sure I'll be needing a clutch here before too long. I keep walking through my Southbend Con O

 

Ceramic will hold, but is not very user friendly. It will buck considerably when feathering, like backing a trailer. Feramic is better, but will still buck a little. Not bad.

As for the difference, looks like it is in the flywheel. The premium kit uses a new 6 speed flywheel, and the economy is a 5 speed flywheel.




$1500 for an SBC?????

 

well would the redrilled 5spd flywheel still be just as good? and what do you suggest for the clutch?

 

Well, the 6 speed is a 13' clutch, so the flywheel is a perfect match. I am sure redrilling is a safe alternative, or they wouldnot offer it. I think the economy unit would be fine for you.

 

I wish I would have just went with a DD when I did mine but I got a very good deal on a South Bend Con FE. Let us know how it works for you.

Andy

 

The big difference between the two flywheels is the 5 speed flywheel is just case hardened (surface hardened) and the 6 speed flywheel is forged (full hardened), so the 5 speed flywheel is only good for 1-2 resurfaces before it need to be replaced, compared to the 6 speed flywheel can be turned as many times as needed as long as it has enough material left.

As for which facing to get depends on what you do with the truck and how much HP you want it to hold.

....Josh

 

With what you have done to your truck i would say a full Feramic HD 12.25 would best fit you. As far as the backin up issues stated before with the full ceramic,, you can put the truck in 4 lo and it negates that problem. The Heavy duty 12.25 actually holds better IMO.

The organic feramic is nice for a mildly modded truck that tows alot, the full feramic is an in between levels of modding clutch(can still tow moderately when paying close attention), where as the full ceramic is considered an all out single plate. My boss just towed between 8000 and 16000 pounds with the full feramic, for 1600 miles with a not broken in clutch. It is still holding great and is really smooth. Feel free to ask any questions and we will answer them to our best abilities.

Nick

 

well i got new era 370s coming, 35/40 hybrid, coming and in the very near future some custom cut dvs if that changes the clutch situation at all

 

well like I said above it depends on what your using the truck for.

If you ever haul livestock I wouldn't go more aggresive than the organic/feramic.

If not I would get either the full feramic or full ceramic either one is going to be a little grabby on engagement, but once you learn to drive on them and they get broken in they are suprisingly smooth. The feramic will be a little easier on your flywheel and a tiny bit less grabby.

As for which 13" inch or 12.25"... I would get the 12.25 with a 3800lb preasure plate and get the HD sping hub upgrade if you get the OFE or the FE.




So basically:
tow livestock= NMU70119-02-HD w/3800lb plate
no livestock, easier on flywheel= NMU70119-03-HD w/3800lb plate
no livestock, all out holding= NMU70119-02 w/3800lb plate

Also you can call Valair and talk to Dan or Kevin and tell them exactly what your looking for and they will recommend one.

Hope this helps....Josh