18V Dewalt model

Hi guys,
I'm planning on getting 2 Dewalts to power a 4WD rambot, I intend on running 18V ones on 5 cell (21V) off of TZ85.

I just need the motors themselves but I'm unsure which models of motor are suitable.

I have a pair of 18v motors and gearboxes, both in good condition, that I don't intend to use. I bought them as surplus for T3. I'll PM you.

Anyone else got a Dewalt kicking around they don't need?

get yourself some of these bad boys

http://i1184.photobucket.com/albums/...sg1wrqx8h.jpeg

I can't even read the part number in that picture :P

396505-21SV or 396505-01SV