Nylon Spur Gear for Spider Center Diff

[tc3_racer_001]

are certain brands better than others? are rrp and good? hpi? those 2 are the ones available @ my lhs... also, are mikes ones suitable to do it with? i think id just let it cool slowly, then redo it. or is it needing to be cooled quickly... thanks:)

[lincpimp]

The quench in oil give it the hardness.

For the price, just get a hardened pinion from mike. They are rr pinions, and are extra hard. They work fine, and will last.