What Causes a Truck to Pull to One Side?

[AsherLee]

There are five main reasons why a truck may pull to one side: 1. Uneven tire pressure; 2. Uneven tire tread wear; 3. Inaccurate wheel alignment parameters; 4. Deformed or failed shock absorber springs; 5. Bent or deformed steering knuckle arms or steering knuckles. There are two common scenarios where a vehicle pulls to one side: 1. Steering wheel-related causes: Uneven tire pressure on the same axle causes the vehicle to pull toward the side with lower pressure, or uneven wheel height causes the vehicle to pull toward the lower side; 2. Alignment angle-related causes: A skewed rear axle creates a thrust angle, causing the vehicle to pull in the opposite direction of the thrust line. Uneven camber angles on the same axle cause the vehicle to pull toward the side with a larger camber angle.