Hardened steel Stampede/Rustler idler gear Question...

[Marv829]

Do the gear teeth on the new idler go all the way to the edge of the gear to cover more of the stock differentials gear teeth or is it identical to the aluminum idler which only covers about 4/5ths of the stock differentials gear width? I think if the idlers teeth were as wide as the diffs teeth it would help reduce stripping the diff a little bit better.

-Aluminum Idler Gear-