What is the Difference Between an 18:1 ratio and 55:1 ratio RV Slide Out Motor

Updated 07/19/2021 | Published 07/14/2021

Question:

what is the difference between a 18-1 and 55-1 ratio slide out motor, the one I just took off to replace says 28-1 ratio but dont see any of those, I have a 2006 Forrest Cherokee Lite, whats best for me?

asked by: Carol H

Expert Reply:

The difference between an 18:1 and 55:1 ratio is going to be the amount of times the smaller gear has to rotate to turn the larger gear one time. So for example your current 28:1 has to rotate 28 times to turn the larger gear one time. You will notice the difference in the motors speed. The 18:1 is going to be quicker than the 55:1. To ensure you order the correct motor for your slide-out, you will need to check the specifications on your existing motor label.

We only have one 28:1 ratio motor available and it is the Lippert 28:1 Venture Actuator Slide-Out Motor # LC136373. This is for a through frame slide out.

If you want to provide me with your current motor's information (model #, serial #, style such as in wall or through frame) I would be happy to help you find the correct replacement.

expert reply by: Scott S