let me know how they fit Z.

Will do!

How do do these dog bones wear anyways? Are they hardened?

i dont know what you mean

...Hardened steel? Heating steel, and rapidly cooling makes it very hard on the surface.

dont mean to hijack but will the shafts that mike designed for the g2 work with the flm or do the lengths differ?

That's exactly what we are talking about my friend!

We are figuring the front one works, and we don't know about the rear... but the FLM chassis comes WITH a rear shaft anyways. It's quite the deal for $90!