2006 GMC Sierra 3500 Tire Size

There are multiple tire sizes for your 2006 GMC Sierra 3500 that depend upon the trim level.  Look for your trim level below to get a color-coded explanation of your tire size.  Then pick the best tire size for your 2006 GMC Sierra 3500.

Trim Options:

SL (DRW)SLE (DRW)SLT (DRW)WT (DRW)

LT215/85R16/E 112Q

Simplified Size:  215-85-16

Simplified size is useful for shopping and buying tires.

The original tire size for your 2006 GMC Sierra 3500 is LT215/85R16/E 112Q.  A color-coded explanation of the 2006 GMC Sierra 3500's tire size is shown below.

LT

This letter denotes the intended use of the tire.

PPassenger Vehicle
LTLight Truck
CCommercial Vehicle
215

This number indicates that your tire has a width of 215 millimeters.

16

The tire size was designed to fit rims or wheels that are 16 inches in diameter.

112

This tire has a load index of 112, which means it's capable of carrying a load of 2464 pounds (1120 kg) or less.  A higher number means the tire can carry more weight.  A lower number means the opposite.

E

The mark of E denotes your tire's load range, or ply rating.  A load range of E means that the tire has a ply rating of 10.  Letters further along in the alphabet represent stronger tires that can sustain higher inflation pressures.  Tires with higher inflation pressures can carry heavier loads.

85

This number means that your tire has an aspect ratio of 85%.  In other words, your tire's sidewall height (from the edge of the rim to the tire's tread) is 85% of the width.  In this case, the sidewall height works out to be 182 millimeters.

R

This letter denotes how your tire was constructed.  Radial is the standard construction method for about 99% of all tires sold today.

RRadial
BBias Belt
DDiagonal
Q

This tire has a speed rating of Q, which means 99 mph (160 km/h) is the maximum speed that can be sustained for 10 minutes.  A higher speed becomes dangerous.

Trim Options:

SLSLESLTWT

LT265/75R16/E 123Q

Simplified Size:  265-75-16

Simplified size is useful for shopping and buying tires.

The original tire size for your 2006 GMC Sierra 3500 is LT265/75R16/E 123Q.  A color-coded explanation of the 2006 GMC Sierra 3500's tire size is shown below.

LT

This letter denotes the intended use of the tire.

PPassenger Vehicle
LTLight Truck
CCommercial Vehicle
265

This number indicates that your tire has a width of 265 millimeters.

16

The tire size was designed to fit rims or wheels that are 16 inches in diameter.

123

This tire has a load index of 123, which means it's capable of carrying a load of 3410 pounds (1550 kg) or less.  A higher number means the tire can carry more weight.  A lower number means the opposite.

E

The mark of E denotes your tire's load range, or ply rating.  A load range of E means that the tire has a ply rating of 10.  Letters further along in the alphabet represent stronger tires that can sustain higher inflation pressures.  Tires with higher inflation pressures can carry heavier loads.

75

This number means that your tire has an aspect ratio of 75%.  In other words, your tire's sidewall height (from the edge of the rim to the tire's tread) is 75% of the width.  In this case, the sidewall height works out to be 198 millimeters.

R

This letter denotes how your tire was constructed.  Radial is the standard construction method for about 99% of all tires sold today.

RRadial
BBias Belt
DDiagonal
Q

This tire has a speed rating of Q, which means 99 mph (160 km/h) is the maximum speed that can be sustained for 10 minutes.  A higher speed becomes dangerous.