8x170 Bolt Pattern
A bolt pattern, or lug pattern, is a parameter that defines the number of lug holes in the wheel and the diameter of the circle (PCD, Pitch Circle Diameter) that the lug holes form. 8x170 bolt pattern, or 8x6.69 when converted to inches, indicates the wheel has 8 lug holes spaced evenly on a circle with a diameter of 170 millimeters or 6.69 inches. The 8x170 bolt pattern is common to Ford models.
The 8x170 bolt pattern is a distinctive wheel specification commonly found in the automotive industry, particularly among Ford trucks, especially in models like the F-250 and F-350 Super Duty trucks from the late 1990s onwards. This bolt pattern configuration indicates that the wheel design has 8 lug holes spaced evenly around a circle with a diameter of 170 millimeters. This specific pattern is critical for vehicle owners and mechanics alike to note when selecting aftermarket wheels, ensuring compatibility and safe operation. Wheels with an 8x170 pattern are engineered to distribute the vehicle's load evenly across the hub, providing stability, optimal handling, and a smoother ride. Moreover, this pattern's uniqueness means that wheels designed for it are less likely to fit other vehicles with different bolt patterns, emphasizing the importance of precision in wheel selection for vehicle customization or replacement purposes.
Similar 8-Lug Patterns
Here are similar 8-lug patterns that can be used as an alternative to 5x114.3 bolt pattern.
| Bolt Pattern | Number of Lugs | PCD (mm) |
|---|---|---|
| 8x165.1 (8x6.5) | 8 | 165.1 |
| 8x180 (8x7.09) | 8 | 180 |
| 8x200 (8x7.87) | 8 | 200 |
| 8x210 (8x8.27) | 8 | 210 |
8-Lug Pattern Torque Sequence
The lug bolt pattern torque sequence is a critical procedure designed to ensure that the wheel is mounted securely and uniformly on the vehicle's hub, preventing potential issues such as wheel vibration or hub damage. This sequence varies slightly depending on the number of lug bolts but always follows a pattern that promotes even distribution of force. When tightening lug nuts or bolts on a wheel with a 8-lug pattern, follow the torque sequence shown below to ensure even and secure tightening. The process usually involves multiple passes: initially tightening bolts to a lower torque setting to seat the wheel properly, followed by final tightening to the manufacturer's recommended torque specification using a calibrated torque wrench. Adhering to this sequence and using the correct torque ensures the wheel is balanced and securely attached, reducing the risk of brake rotor warping and ensuring the safety of the vehicle.
Vehicles with 8-Lug Wheel Bolt Pattern
There are 3 vehicle models that have 8x170 bolt pattern. Select vehicle model for additional information.
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