How To Stop Wandering On Highway When Semi Passes 2018 Thor Chateau 28Z Class C RV

Published 10/08/2025

Question:

My 2018 Thor Chateau 28Z class c RV wanders whenever a semi passes. Would a Safe-T-Plus help, or do I need new sway bars?

asked by: Mike

Expert Reply:

Mike, you’ll want to start with the Safe-T-Plus # ST98MR. Sway bars reduce body roll, but they don’t fix steering wander. The # ST98MR keeps the wheel centered automatically, so those truck blasts or gusty days won’t push you around.
It’s the most noticeable handling upgrade you can make on an E-450 based on the issue you are describing.

Once installed, you can always add heavier sway bars later if you want to tighten the feel even more, but I'd do this first and see how you like it as this will make a huge improvement.

expert reply by: Andrew N