PedaltoMetal

Never used the Kolene steels before. Is it a coating or a treatment? Should I be concerned about this?

382ssz28

iTrader: (24)

No. Combined with the right frictions, High Energy, Alto Reds, Raybestos Red Devils, etc, under extreme conditions work very well. The factory has been using them in specific clutch packs, AX4N intermediate/directs, 4T65E intermediate, etc. to prevent burn ups for a while now. The coating is supposed to provide a smooth engagement without the flash heating or blueing of the steel, (hot spots) that causes premature failure of the mating frictions.

Randy WS6

iTrader: (69)

I have those steels in all my drums 4L80

PedaltoMetal

Thanks for responding guys. I did some research and found that Kolene is actually the company that does the treatment. They're in Michigan.Kolene. As quoted from Alto's website.AltoUSA "KoleneŽ is a salt bath nitriding process. In generic terms, it is a thermochemical diffusion process, whereby ferrous parts are processed in molten salt with a specific nitrogen potential. In plain English, it provides a surface treatment that enhances wear and fatigue resistance from 200% to 500%."

My trans supplier said they're fine but he will replace.