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Kcaz25 · **Homemade diff pin? -** 11.27.2009, 05:00 PM

Which is better?

The shorter silver one(shorter because I cut it) says cobalt? Is that hardened steel coated in cobalt? The black one says hardened steel coated in black oxide. Which is what? and which is better? Thanx!

	(#1)
Kcaz25 RC-Monster Titanium Offline Posts: 1,419 Join Date: Dec 2008 Location: Louisville, KY	Homemade diff pin? - 11.27.2009, 05:00 PM Which is better? The shorter silver one(shorter because I cut it) says cobalt? Is that hardened steel coated in cobalt? The black one says hardened steel coated in black oxide. Which is what? and which is better? Thanx!