When did GM go from 8x6.5 to 8x180?
General Motors (GM) transitioned from using 8x6.5 wheel lug patterns to 8x180 lug patterns on some of its vehicles, but the exact timeline for this change is not widely documented. The 8x180 lug pattern, also known as the 8-on-180mm pattern, became more common on larger GM trucks and SUVs in the late 1990s and early 2000s.
Understanding Wheel Lug Patterns
The wheel lug pattern refers to the number of lug nuts and the diameter of the bolt circle, which is the imaginary circle formed by the center of the lug nuts. A common lug pattern for many vehicles is 5x114.3, meaning there are 5 lug nuts arranged in a 114.3mm diameter bolt circle.
The 8x6.5 lug pattern, which was used on some older GM vehicles, had 8 lug nuts in a 6.5-inch (165mm) diameter bolt circle. The 8x180 pattern, on the other hand, has the same 8 lug nuts but in a larger 180mm diameter bolt circle.
Reasons for the Lug Pattern Change
- Increased Towing and Payload Capacity: The larger 8x180 lug pattern allowed GM to increase the towing and payload capacities of its larger trucks and SUVs, as it could support heavier loads and larger wheels/tires.
- Improved Stability and Handling: The wider bolt circle of the 8x180 pattern provided better weight distribution and stability, especially for heavy-duty vehicles.
- Industry Standardization: The 8x180 lug pattern became more common across the automotive industry, allowing for greater interchangeability of wheels and components.li>
While the exact timeline is not clear, the transition from 8x6.5 to 8x180 lug patterns on GM vehicles likely occurred gradually over the late 1990s and early 2000s as the company updated its larger truck and SUV models.
What year did GM switch to 8x180?
GM has used the same 3/4 ton bolt pattern since the late 60's and finally changed it in 2011 to the 8x180 pattern along with higher towing capacity, larger brakes and a stiffer frame.....
What trucks have a 8x180 bolt pattern?
List of Vehicles Using the 8×180 Bolt Pattern
| Make | Model | Available Trims |
|---|---|---|
| Chevrolet | Silverado 2500HD | Work Truck, LT, LTZ, High Country |
| Chevrolet | Silverado 3500HD | Work Truck, LT, LTZ, High Country |
| GMC | Sierra 2500HD | Base, SLE, SLT, Denali |
| GMC | Sierra 3500HD | Base, SLE, SLT, Denali |
What year is the 8x180 bolt pattern?
2011
This bolt pattern is commonly used for the GMC Sierra 2500 and 3500, as well as the Chevrolet Silverado 2500 and 3500. In 2011, the old bolt pattern (8x6. 5) was switched out for the 8x180 bolt pattern.
What year did GM go to L5P?
L5P. The L5P Duramax is the latest version of the Duramax V8 diesel engine. (engine code Y). Introduced in the 2017 model year, it was the most powerful diesel engine GM had produced, with 445 hp (332 kW) at 2,800 rpm and 910 lb⋅ft (1,234 N⋅m) at 1,600 rpm.
When did Chevy stop using 8x6 5?
^^ yup, 2011 is when the lug pattern changed for the HD trucks. Went from 8x6. 5 to 8x180.
What lug pattern is a 2011 Chevy 2500HD?
8x180
What is the bolt pattern on the Chevy Silverado 2500? Late generation Chevy Silverado 2500 trucks have an 8x180 bolt pattern, although earlier models featured an 8x165. 1 bolt pattern (AKA 8x6. 5 rims).
Are all Chevy 6 lug patterns the same?
Not all Chevy 6 lug patterns are the same. Two different models with the same number of lugs might not have identical patterns. However, many manufacturers will use the same bolt pattern for all of their vehicles, or use the same bolt pattern within different classes of their vehicles.
What is the bolt pattern on a 2010 GMC 2500?
Vehicle Bolt Pattern 8 x 165.1 (5 x 6.5")
What is the bolt pattern on a 2010 GMC Sierra 2500hd?
The bolt pattern is 8x165 or 8x6. 5. These will bolt onto your truck without spacers or adapter kits needed.
What is the old Chevy bolt pattern?
The most common Chevy 6-lug bolt pattern that you'll find on the highest number of vehicles on Modesto roads, is the 5-127 metric. Between 1973 and 1998, this was the lug used on most Chevy full-size truck models.
