Understanding the 2016 Dodge Ram wheel bolt pattern is essential for any vehicle owner looking to upgrade their wheels or troubleshoot existing fitment issues. This specific specification dictates the number of lugs and the diameter of the imaginary circle they form, which directly impacts wheel compatibility and safety. Getting this measurement correct ensures a secure fit and prevents dangerous vibrations or damage to the mounting surfaces. This guide provides a detailed breakdown of the bolt pattern for the 2016 model year Ram trucks.
The Standard 2016 Dodge Ram Bolt Pattern
The vast majority of the 2016 Dodge Ram lineup, including the popular 1500, 2500, and 3500 variants, utilizes a 6-lug configuration. The specific bolt pattern is 6x139.7mm, which is often converted to 6x5.5 inches in the United States market. This means the wheel has six mounting holes, and the distance between the center of one lug hole to the center of the hole directly across from it measures 139.7 millimeters.
Why the Bolt Pattern Matters
Wheel compatibility is not just about diameter and width; the bolt pattern is the primary mechanical link between the wheel and the vehicle. A mismatch in this specification will prevent the wheel from mounting properly, as the holes will not align with the studs. Even if forced, this misalignment can lead to improper clamping force, risking the wheel coming loose during operation, which poses a severe safety hazard and leads to catastrophic failure.
Variations and Trim Levels
While the 6x139.7mm pattern is standard across the board for the 2016 model year, it is always good practice to verify based on trim and axle configuration. The Ram 1500, 2500 Heavy Duty, and 3500 Chassis Cab all share this pattern, but certain performance packages or specific wheel sizes might have unique requirements. Always cross-reference your specific vehicle identification number (VIN) or existing wheel measurements before purchasing new rims.
Measuring Your Current Wheels
If you are unsure of the bolt pattern on your current setup, measuring it is a straightforward process. You can use a tape measure or caliper to determine the distance between the centers of two adjacent lug holes. However, the most common and reliable method for a 6-lug pattern is to measure the diameter of the imaginary circle. Place the tape measure across the centers of two holes that are directly opposite each other to get the 139.7mm figure.
Aftermarket Wheels and Installation
When shopping for aftermarket wheels, the 6x139.7mm pattern offers a wide range of options from various manufacturers. However, you must also consider offset and center bore to ensure a proper and safe installation. The offset affects the wheel's stance and clearance, while the center bore must be equal to or larger than the vehicle's hub diameter to prevent vibration; a hub-centric ring can be used to center the wheel if the bore is smaller.
