I've run every dual disk, and single disk that Valair offers. And I can attest that the sintered iron, and ceramic dual disks will snap input shafts if you try to speed shift. At the moment, I am running a sprung hub organic dual disk in my daily driver. It's smooth as hell, and love it for pulling and general horsing around. But it doesn't like being slipped at all. If I ride the clutch to keep the rpms up launching the truck, it's clutch smell city. LOL
The sintered iron dual disk in my puller, is bad ass as well. But I wouldn't try to back a trailer up with one. LOL
The ceramic dual disk was the perfect dual disk for part time pulling and racing in my book. It held everything I could throw at it. And, I raced people quite a few times before it actually shelled an input shaft. But I believe it did that because my syncros are crap, especially in 4th gear.
The best all around abusable single disk had to be the ceramic. I couldn't get it to slip, but I could speed shift the crap out of it. Once I was done with it, I gave it to one of my guys who's truck is stronger than mine, and he's been beating the crap out of it for a few years, and it's still going strong.
My recommendation to you is to call up there and talk to Dan, or Gary. Both great guys to talk to. Dan is Valair VP, and Gary is his perfomance clutch manager. They know their clutches. Tell them what you want to do with the truck, and be honest. LOL They will set you up, or recommend the perfect clutch for you. If you think you want to go with a Valair, holler at me on a pm, and I can help you get a better price than they advertise.
