The Chevrolet Silverado 2500’s Correct Lug Pattern

The Chevrolet Silverado 2500’s Correct Lug Pattern

Prior to this article, we’ve talked about the Chevy Silverado 1500’s specific lug pattern and all the other necessary things to keep in mind in order to fit wheels on it properly.

This time around, we’re going to tackle the specific lug pattern of its bigger brother, the Chevy Silverado 2500HD.

Unlike the 1500 variant, the Silverado 2500HD has actually used two different lug patterns ever since its inception.

What is the lug pattern of a Chevy Silverado 2500HD?

Chevy 2500s made from 2001 to 2010 were fitted with a lug pattern that measured 8×6.5 inches (8×165.1mm)

2011 to current (2022) Chevy 2500 models made use of a slightly bigger 8×7.1-inch (8x180mm) lug pattern.

As you can see, the Silverado 2500HD has made the switch to an 8-lug pattern, which is actually not that surprising for any truck in the 2500 category.

Furthermore, the “HD” in its name signifies that it’s a “Heavy-Duty” truck, as opposed to the “Light-Duty” designation for trucks in the 1500 category.

A truck that can carry over a thousand pounds more than the Silverado 1500 is going to need beefier equipment, which partially explains the Chevy 2500’s jump to a bigger lug pattern.

We say “partially”, as the lug pattern isn’t the only thing that has changed to accommodate the Chevy 2500’s heavier tasks.

In this article, we have also included other lug specifications as well as the tire and rim sizes offered for each Chevy 2500 trim level.

Wheel and Lug Specifications for the Chevy Silverado 2500HD

The Chevy Silverado 2500HD is currently in its 4th generation, with the 1st generation produced way back for the 2001 model year.

But for the sake of simplicity, we have listed the Chevy 2500’s specifications according to which production years had the same set of them.

2020 to 2022 Production Years (4th Generation)

Chevy Silverado 2500s produced from 2020 until the current model (2022) have the simplest specifications to keep track of, as they line up perfectly with the 4th generation’s timeline.

It also only has two trim levels, both of which have the same lug specifications and almost the same set of tire and rim sizes.

The only small difference is that the LT275/65R20 tires and 8.5Jx20 ET47 rims are only replacement options for the 6.6TD, but are otherwise considered factory options for the 6.6i.

Center Bore Diameter: 124.1mm

Wheel Fastener: Lug Nut (6)
Thread Size: M14x1.5
Torque Spec: 140lb-ft (190Nm)

Trim LevelTire SizeRim Size

6.6TD V86.6i V8
LT245/75R17LT265/70R177.5Jx17 ET44
LT275/70R188Jx18 ET44
LT275/65R20 (Replacement Only for 6.6TD)8.5Jx20ET47 (Replacement Only for 6.6TD)

2011 to 2019 Production Years

The 2011 to 2019 production years actually started the trend of equipping the Chevy 2500 with the exact same lug specifications in the previously discussed 4th generation.

Center Bore Diameter: 124.1mm

Wheel Fastener: Lug Nut (6)
Thread Size: M14x1.5
Torque Spec: 140lb-ft (190Nm)

These production years have also combined half of the 2nd generation (2007 to 2014) and all of the 3rd generation’s (2015 – 2019) wheel specifications into one.

Take note that the 6.0L is the petrol variant (i) while the 6.6L is the diesel one (TD), but these extra designations were only included in their trim level names at the start of the 3rd generation.

Trim LevelTire SizeRim Size

LT245/75R17LT265/70R177.5Jx17 ET44
LT265/70R188Jx18 ET44

2001 to 2010 Production Years

Chevy 2500s produced from 2001 to 2010 included the entirety of the 1st generation (2001 to 2006) and half of the 2nd generation’s (2007 to 2014) lug specifications.

During these production years, the Chevy 2500 had a smaller 116.6mm center bore diameter.

Other than that, the rest of the lug specifications are exactly the same as the newer models discussed above.

Center Bore Diameter: 116.6mm

Wheel Fastener: Lug Nut (6)
Thread Size: M14x1.5
Torque Spec: 140lb-ft (190Nm)

As for the wheel specifications, the entire 1st generation, which included an 8.1-liter variant from 2001 to 2006, was only fitted with a single tire-and-rim combination.

Starting in 2007, however, two extra tire options for the 2nd generation’s trim levels were added. These were the 265/70R17 and LT265/70R17 tire sizes for the 6.0L and 6.6L respectively.

Notice how the former doesn’t have the “LT” designation, which basically means that it’s not rated as a “Light Truck” tire.

With that said, avoid fitting non-LT tires if you plan on using your truck for carrying and towing heavy loads frequently. 

Trim LevelTire SizeRim Size
6.0L 6.6L8.1L (2001 – 2006)

6.5Jx16 ET28

6.0L (2007 – 2010)
LT245/75/R166.5Jx16 ET28
265/70R177.5Jx17 ET28

6.6L (2007 – 2010)
LT245/75/R166.5Jx16 ET28
LT265/70R177.5Jx17 ET28

How To Properly Tighten the Lug Nuts on a Chevy Silverado 2500HD

Pickup trucks like the Chevy Silverado 2500HD were made for relatively heavy tasks, so it’s important to consider that everything stays firmly in its place during such tasks.

This is especially true for its lug nuts, and there are 8 of them that you need to make sure stay torqued up to the recommended specification of 140lb-ft (190Nm).

But it’s not enough to just know how many lug nuts there are or how much torque is needed to tighten them. 

It’s also very important to know how to tighten them in the correct order, so you can avoid having any imbalances in the tightening force applied to the wheel.

Make sure to clean the lugs and holes as well to further reduce the chance of the lug nuts getting loose.

Full 8-lug tightening pattern

Since the Chevy 2500 has a considerable amount of lug nuts, it would require a slightly complicated criss-cross tightening pattern.

Going from 1 through 4 will be your standard 4-lug tightening pattern. From that point on, make sure to follow the numbers and arrows carefully to finish the full 8-lug tightening pattern.

Tighten the lugs to about half of the recommended torque value only when the truck is still up on jack stands.

Only after lowering it back to the ground can you safely tighten the lug nuts up to the recommended torque value.

To test how secure the lug nuts are, drive for at least 50 miles before rechecking them again for any changes in torque value.

If you find that the lug nuts have already loosened a bit, then you should consider checking the calibration of the torque wrench you used.

Even a slight miscalibration can cause your lug nuts to be under-torqued (or over-torqued), so make sure that your torque wrench is always properly calibrated.

When To Change Your Chevy Silverado 2500HD’s Tires

The Chevy Silverado 2500HD, just like any car, would eventually need a tire change or rotation, especially if it’s been subject to a lot of towing and carrying.

Under normal use, you should expect your tire’s tread life to last for about 60,000 to 75,000 miles (97,000 – 121,000 kilometers).

If you don’t really rack up that much mileage on your Chevy 2500, then it’s still recommended to change your tires every 4 to 5 years.

One way to check your tread life is to look for the “tread wear indicator bars” that sit deep between the treads.

Indicator Bars

If your tires barely have any tread life left in them, then these bars would be at the same height as the treads themselves.

Another popular way of measuring tire tread life is by inserting a penny upside down between the treads.

Penny Test

If half of Abe Lincoln’s head remains hidden from sight, then your tires are still good to go.

If his forehead or entire head is in clear view, then it means that your tire treads are already too thin to safely drive on. It’s time to change to a new set of tires at that point.

Tire Rotation Schedule For the Chevy Silverado 2500HD

Suppose your tires still have a lot of tread life left, you still need to make sure that they are rotated regularly.

Since the entire Chevy Silverado lineup uses either a rear-wheel drive (RWD) or 4-wheel drive (4WD) configuration, a specific tire rotation pattern needs to be followed.

Rearward Cross

The pattern shown above is called the “rearward cross”, and it’s the most effective tire rotation pattern used in both RWD and 4WD vehicles.

The two front tires are moved to the back while switching sides, and the back tires are then moved to the front but remain on the same side they started on.

For RWD Chevy Silverados, tire rotations should be done every 5,000 to 7,500 miles (8,000 to 12,000km).

4WD Silverados, on the other hand, would require slightly more frequent rotations at 3,000 to 5,000 miles (4,800 to 8000km). 

The reasoning behind this is that in 4WD systems, engine power is delivered to all four wheels, thereby resulting in more tire wear on average compared to RWD or FWD systems.

Can you fit dually tires on a Chevy Silverado 2500HD?

Chevy 2500 Tire Comparison

With the factory specifications, you cannot mount dually tires on the Chevy 2500 as its axle is not wide enough to accommodate the extra tire width.

The inner tires would hit the suspension before you can even mount the wheels on the lugs.

Dually tires are mainly used for trucks in the 3500 (1-ton) category or higher, as they provide a lot more support for carrying heavier loads as compared to single-tire setups.

While there are conversion kits out there that add steel wheel spacers and different body panels, remember that 2500 trucks are still rated at a lower weight capacity than 3500s.

With that said, a “converted” Chevy 2500 will still not safely and efficiently perform the same level of tasks as a true 3500 truck like the Chevy Silverado 3500.