If you’ve ever felt like a passing semi-truck was trying to push your motorhome off the road, you’ve experienced the "tail wagging the dog" effect. This unnerving sensation occurs when the motorhome’s body moves side-to-side over the rear axle, forcing you to make constant steering corrections just to stay in your lane.
The Problem: Leaf Spring Lateral Play
Most motorhome chassis, like the popular Ford F53 or E-Series, rely on leaf spring suspensions. While great for carrying heavy loads, leaf springs are notorious for allowing lateral (side-to-side) movement. When wind hits the side of your coach or a large vehicle passes, the springs flex sideways, causing the rear of the RV to "wander."
The Solution: The SuperSteer Rear Trac Bar
The SuperSteer Rear Trac Bar (such as the popular SS401 or SS451 models) is engineered to bridge the gap between the chassis frame and the rear axle. By creating a solid pivot point, it effectively eliminates that lateral shift without interfering with the vertical movement required for a smooth ride.
Key Benefits Include:
- Better Steering Response: Since the rear isn't wandering, your steering inputs become more precise.
- Reduced Driver Fatigue: Stop "white-knuckling" the steering wheel and enjoy the drive.
- Bolt-On Installation: Most kits utilize existing OEM holes, meaning no drilling or welding is required.
- Durability: Built in the USA with heavy-gauge steel and long-lasting polyurethane bushings.
Whether you are driving a brand-new 2021+ Ford V8 chassis or an older Workhorse, adding a Rear Trac Bar is often cited by owners as the single most impactful handling upgrade they’ve ever made.
