8500 r.p.m. motors strong enough for Tamiya nylon/ metal tracks?

[sclui56]

Rich, thanks. I did have to torch the last one I did and work the pinion off with plyers while keeping the shaft in place. After that, I just get the Tamiya bare 380's.

[Vaseline]

I have a couple planetary gear systems that I want to mess with and they don't have caps on them Was just wonder how to put them on other motors