Does anyone know where i can get a rack?

When i mean rack i mean rack and pinion. Not for Cars, Im working on a toycar and i need a rack and pinion because im make it like a forklift which i will mount the rack on the lifter and the pinion on the motor. if u could tell me stores where they sell it at that would be apreciated or offline. and i wouldnt want it too be expensive . (details) --- Rack and pinion i want them too be steel