How Much More Clearance Under Trailer Using Torsion Axle With Negative Angle

Updated 05/11/2015 | Published 05/09/2015

Question:

If we have a trailer with 10 deg. up axles and we need to get more clearence under the trailer what would 10 deg down do for us?

asked by: Knoxs S

Expert Reply:

In order for you to realize more clearance under your trailer, using torsion axles with down degree angles will give you more clearance.

On a system that has a 10 degree up axle, the center line of the spindle to the bottom of the trailer frame is approximately .96 inches. That is based on a newer system. If you have an older system on your trailer that measurement may be much less.

For a 10 degree down you would have a difference of 2.08 inches. For 22.5 degree down, the difference would be about 3-1/3 inches, and for a 45 degree down torsion axle, the difference could be 5.28 inches.

If you know how much clearance you need for your trailer, you can use those numbers to give you the best fit for you. You should realize that raising the trailer for more clearance will introduce more trailer sway by raising the center of gravity.

expert reply by: Jeffrey L