Gears & Axles - can somebody clear this up for me? Who makes SLP gears?

I read that AAM make the SLP gears and then I read they are a Motive gear. I was liking the idea of them being made by AAM because I hear they are a quiet gear "made for GM" So what is the story on these gears? I want a quiet gear.

anybody know?

Do you mean where does SLP buy their gears from? If so I believe SLP offers AAM gears, their website should say.