Stock differentials?

[maxxdude1234]

Originally posted by Nick
I'm rather confused at this.

The stock e-maxx claims it has "Hardend Steel Differentials" yet everyone says that 6601 alloy' would be better.

I thought 6601 was very soft metal, not brittle but soft and that Steel was very strong but probably abit more brittle.

So why is the Alloy differentials better? Isn't steel stronger than alloy'?

Just do clarify things up alloy doesn't mean aluminium. An alloy is a combination of 2 or more metals (eg, 6061 aluminium/6AL4V titanium and more exotic ones such as nitinol/invar which are made of nickel + titanium/nickel + Iron, respectively).

The stock diffs are hardened steel (aka. high carbon steel - 98.5% iron/1.5% carbon), 6061/7075 aluminium is much much lighter but not has hard/strong/durable, etc... The problem with the stock diffs is the fact that they have very hard gears, but tiny screws and nylon cups. This really is a bad mistake on traxxas's part - and when you have a huge unbalance between strength of materials, you are only asking for trouble.