How to Determine Which Over Under Kit Fits 2017 Sundowner Horse Trailer for Lift Kit

Question:

I have a 2017 Sundowner Horse trailer gooseneck that I need to raise three inches as my truck sits up so high. Can you tell me which kit I would need to purchase for this. Thank you

asked by: Valerie

Expert Reply:

The diameter of your trailer axle will determine the size of the parts that you will need to order to install an over under kit on your trailer to lift the suspension. If your axle is 3 inches diameter, the Dexter Trailer Springs Over-Under Conversion Kit, # K71-385-00, would be a great choice and if your axle is 2-3/8 inch diameter you could use the Over-Under Kit, # K71-384-00. These kits can be installed without welding but the manufacturer strongly recommends having the new spring seat tacked in place on the other side of the trailer axle.

Some refer to this process as "flipping the axles," but since axle has a slight bow to it you can't just flip them and reinstall them under the springs using the same spring seats. You have to install new spring seats on the opposite side of the axle so that it can be moved below the spring.

expert reply by: Jameson C