[DonRotolo]

Seems to me that window lift motors - or a similar worm drive system - might be better for the steering motors. They rotate slowly - but maybe not slow enough - and have significant torque, and take the bumps pretty well. Plus, they are available cheap in surplus and reasonable in new.

Some newer types sometimes have integrated quadrature sensors (used for detecting objects during auto-close of the windows) that are sensitive and can be used to maintain steering alignment (along with a 'home' switch for recalibration).

Some idle thought, is all.

Don