The Replacement Motor with Mounting Plate for Kwikee Electric RV Steps # LC379608 is not a fit for your 32 series step. Instead you will need the Replacement Gear Box and A Linkage for Kwikee Electric RV Steps # LC379160 and the motor # LC379147.
Replacement Motor for Kwikee 25 Series Electric RV Steps - 12V # LC369506 has the 9 tooth gear you referenced but is not for series 32 Kwikee Step. view full answer...
For an air to electric brake controller the Hayes part # HA100400C is the kit you want. This ties into the air brake setup of your Freightliner and will provide an electric signal to control your trailer's electric brakes. view full answer...