The Traxxas Half Shaft Pro Pack is a set of telescoping half shafts. Half shafts carry drive from the differential to the wheels.
In the pack you get six internal and six external-splined half shafts, made up as six sets. Within each set, the internal shaft slides in the external shaft. The parts are white plastic. Fully compressed, the shafts are 2.5" long.
These shafts are for use on Traxxas trucks and fit these models:
I've heard that too many metal parts on your rc can actually make valuable parts like the transmission wear out faster. I think it's better to have these cheaper ones break instead of the pricier parts.
I keep these around as spare half shafts.
Break Easily
They're direct replacements for Traxxas rc cars. Not much to say, but they do break easily.