If the truck is unloaded the ride may become stiff since the constant rate coil lacks the lighter wound section. Constant rate coils are used for heavy haulers that haul extra weight consistently or very frequently as they will handle the extra load while losing less height than a variable rate spring. Weight will always be distributed evenly through the coil and the coil will compress less under load than a variable rate coil. Constant rate – Constant rate coil springs will have a consistent wind through the entire coil spring.A higher weight will overwhelm the lighter coil section and cause the ride height to sink many inches before the entire coil is supporting the load. Progressive rate coils are great for leveling springs, but they are not recommended by heavy haulers or someone who carries extra weight consistently. In situations of higher load, the lighter coil section will collapse, and the tighter wound section will begin carrying weight. The area with the open winding will allow a smooth ride as it will collapse with less resistance, much of the time the truck will be riding in this lighter coil section.
A section of the coil will be wound with the coils father apart and the gaps will close as you progress further down the coil.
The extra weight can cause sagging in the front and the rear of the vehicle and moving to a heavy-duty coil spring can permanently restore the ride height. Motorhomes may be filled with items used for living on the road and work trucks will be filled with items for working on the road. Vehicle contents – Motorhomes and work trucks may be carrying more weight than they were originally.Increasing the capacity of the coil springs will help return the ride height to its indented setting and can restore the suspension travel that is lost when the extra weight pulls the front of the truck down.
Accessories – Winches, aftermarket bumpers, brush guards, and tire carriers will all add weight to the front of the truck that was not factored in when the springs were equipped at the factory.Timbren kits are a rubber helper spring kit that have been used on commercial and municipal snow plow trucks for years. If you are looking for additional support for your snow plow, we also recommend Timbren Suspension Kits. This will make your truck ride rough and the lower ride height will make it difficult to get in and out of driveways without bashing your plow brackets. With all the extra weight, the front of your truck can be pulled down to the bump stops. Snowplows – Adding a snowplow is the most common reason for Heavy Duty coil springs.Moving to a heavy-duty coil spring can correct the sagging and even be used to lift the front over stock height, and act as a leveling kit. Trucks with diesel engines and motorhomes tend to sag in the front, and the problem may become more pronounced over time. Under-Sprung – Many motorhomes and trucks (especially with diesel engines) were under-sprung from the factory, meaning that the spring rate was too low for the weight of the engine and the contents of the vehicle.The reason for the sagging is what is different from vehicle to vehicle. Heavy-duty coil springs will fight sagging.
FULL SIZE TRUCK FRONT COIL SPRING BOOSTER UPGRADE
The reasons to upgrade to a heavy-duty coil spring vary from vehicle to vehicle.
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