Good luck on your search, the exact curve shouldn't make a difference... I'd buy the Toyota one that matches the clutch.
On a previous question, when I installed a Toyota trans using a Chevy clutch, the splines fit, but the Chevy splines are squarer than the Toyota ones. Based on my observations, I don't believe a Toyota disc would fit onto a Chevy input shaft. Which is why a Chevy disc would. E recommended.
On a previous question, when I installed a Toyota trans using a Chevy clutch, the splines fit, but the Chevy splines are squarer than the Toyota ones. Based on my observations, I don't believe a Toyota disc would fit onto a Chevy input shaft. Which is why a Chevy disc would. E recommended.