Top five problems caused by truck sag when towing or hauling

If you have a truck camper or towable (travel trailer, boat trailer, horse trailer, toy hauler or fifth wheel), you’ll notice a sag in the rear of your vehicle when you load the camper or hook up the trailer. 

For your vehicle to handle heavy towing or hauling, the added weight will start to engage your factory leaf springs to help support the load.

However, did you know that your vehicle’s leaf springs are only beginning to be put to work? It is using only a small percentage of their total capability. The vehicle must drop down several inches in order to come into contact with the overload leaf springs. Notice the rear or the vehicle sagging significantly in the vehicle below.

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Because the leaf springs aren’t fully activated, the additional weight causes the front of the vehicle to lift up and the rear of the vehicle to sag, producing these top five problems:

1)  Proper front end steering alignment is thrown off balance, causing the vehicle to have delayed steering response. The ride will feel unsafe and out of control.

2)  The braking distance is extended due to significantly less weight on the front tires. Braking distance is increased because the front of the vehicle is responsible for up to 70% of the vehicle’s stopping ability.

3)  The position of the vehicle’s front end causes its headlights to point upward.  This creates a nighttime road hazard by blinding oncoming traffic.

4)  Due to the misalignment of the steering, tire wear is increased and there is potential for premature tire wear failure.

5)  The misalignment causes an uneven tire footprint, which can decrease your fuel mileage.  This is due to the uneven load and vehicle riding unleveled.

In order for your overload leaf springs to help manage what you are towing or hauling, they must come into contact with the rest of the leaf springs. The StableLoad suspension stabilizer eliminates delayed contact and puts your springs to work sooner, eliminating truck sag.

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How is the delayed spring contact eliminated? The lower quick-disconnect StableLoads close the gap between your spring pack and overload leaf spring. By eliminating this gap, the leaf springs can activate when needed the most, providing a more safe and comfortable ride quality. Not only does this eliminate truck sag, effects of side-to-side sway, body roll and porpoising are also greatly reduced.

Roger Friend installed the StableLoads on his 2013 Ford F150 to help tow his Lance travel trailer. To put the suspension upgrade to the test, he measured the drop in his vehicle with trailer, both with and without the StableLoads.

SL-Chart- Sag

“The best feature of the StableLoads is the reduction of rear end droop,” said Roger Friend. “I am now able to tow my Lance travel trailer without use of my weight distribution hitch.”

By engaging the Torklift quick-disconnect lower StableLoad application, Roger is able to safely tow his trailer without the negative effects of truck sag.

The patented StableLoad suspension stabilizer is the only product available designed like an on/off switch that enables you to turn the system off when needed. Keeping the system off when not towing or hauling enables you to keep the soft, smooth ride. Flip them on, load your vehicle and continue to enjoy the same ride quality. No other suspension system has the versatility of an on/off capability.

Several Ford truck applications do not require drilling and are easily installed. Also, the lifetime warranty that comes with the StableLoad extends to the factory-installed leaf spring of your vehicle as an added bonus.

Click here for more information on the StableLoad Suspension stabilizer. 

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