2004 GMC Sonoma Tire Size

Your 2004 GMC Sonoma was manufactured with multiple tire sizes.  Choose a tire size below to get a color-coded explanation of the differences.  Then pick the best tire size for your 2004 GMC Sonoma.

Trim Options:

SLSLS

P235/70R15 102S

Simplified Size:  235-70-15

Simplified size is useful for shopping and buying tires.

The original tire size for your 2004 GMC Sonoma is P235/70R15 102S.  A color-coded explanation of the 2004 GMC Sonoma's tire size is shown below.

P

This letter denotes the intended use of the tire.

PPassenger Vehicle
LTLight Truck
CCommercial Vehicle
235

This number indicates that your tire has a width of 235 millimeters.

15

The tire size was designed to fit rims or wheels that are 15 inches in diameter.

102

This tire has a load index of 102, which means it's capable of carrying a load of 1870 pounds (850 kg) or less.  A higher number means the tire can carry more weight.  A lower number means the opposite.

70

This number means that your tire has an aspect ratio of 70%.  In other words, your tire's sidewall height (from the edge of the rim to the tire's tread) is 70% of the width.  In this case, the sidewall height works out to be 164 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
S

This tire has a speed rating of S, which means 111 mph (180 km/h) is the maximum speed that can be sustained for 10 minutes.  A higher speed becomes dangerous.

Trim Options:

SLSLS

P235/75R15 105S

Simplified Size:  235-75-15

Simplified size is useful for shopping and buying tires.

The original tire size for your 2004 GMC Sonoma is P235/75R15 105S.  A color-coded explanation of the 2004 GMC Sonoma's tire size is shown below.

P

This letter denotes the intended use of the tire.

PPassenger Vehicle
LTLight Truck
CCommercial Vehicle
235

This number indicates that your tire has a width of 235 millimeters.

15

The tire size was designed to fit rims or wheels that are 15 inches in diameter.

105

This tire has a load index of 105, which means it's capable of carrying a load of 2035 pounds (925 kg) or less.  A higher number means the tire can carry more weight.  A lower number means the opposite.

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 176 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
S

This tire has a speed rating of S, which means 111 mph (180 km/h) is the maximum speed that can be sustained for 10 minutes.  A higher speed becomes dangerous.