Well, I wonder if every manufacturer's diff balls are carbide... For a pack of 100 at six bucks, why not use the E52100 Steel balls?
They are "chrome" style balls. Perhaps I lack the understanding of why hobby cars uses carbide balls for the diff?
I recently bought a pack of these, actually stainless steel (which are even more $$$) with steel rings to use on my B44. Haven't replaced them yet, but will let you guys know how they perform.
I figure a set of steel rings and stainless steel balls are better then carbide ones that are now shot due to usage...
Does anyone know why carbide is specified on the diffs of many of the high performance kits such as the B44? What's the advantage of carbide versus other grades of steel (such as the E52100)?