I see. Last rebuild kit I used contained a mix of black (carbon?) and red Borg Warner clutches. Second and fourth clutches are carbon and third is Red IIRC.
I reused all the bands. They all looked like new because this trans does not use bands to upshift. Just used for garage shift from P/N into gear, or manual second. It's a 4T65E trans.
Got a couple questions.
First, does your bad opinion of Kevlar bands apply to clutch plates too? I would expect the wear of the steels would not matter because they get discarded when the lined plates are replaced.
Also, what do you think of the carbon clutches? The torque converter I'm using contains a carbon TCC clutch and the manufacturer guarenteed it to be "almost indestructable."
If everything else is the same (line pressure, clutch surface area etc) which type of friction material will carry the most torque before it is overpowered and begins to slip?
I've always bought the clutches as a set and never really given much thought about using different friction materials.
Remember, I'm a transmission "rebuilder" (one who can successfully rebuild following ATSG instructions) not a transmission "builder" like you guys who engineer your own improvements. I'm still learning!
Later,
David