1996 GMC Sonoma Tire Size
There are multiple tire sizes for your 1996 GMC Sonoma that depend upon the trim level. Look for your trim level below to get a colorcoded explanation of your tire size. Then pick the best tire size for your 1996 GMC Sonoma.
Trim Options:
SL (Optional Tire Pkg.)SLE (Optional Tire Pkg.)SLS (Optional Tire Pkg.)
31x10.50R15/C NaN
Simplified Size: 31x10.5015
Simplified size is useful for shopping and buying tires.
The original tire size for your 1996 GMC Sonoma is 31x10.50R15/C . A colorcoded explanation of the 1996 GMC Sonoma's tire size is shown below.
10.50  This number indicates that your tire has a width of 10.50 inches.  
31  This mark reveals that your tire has a diameter of 31 inches.  
15  The tire size was designed to fit rims or wheels that are 15 inches in diameter.  
NaN  This tire has a load index of NaN, which means it's capable of carrying a load of NaN pounds (undefined kg) or less. A higher number means the tire can carry more weight. A lower number means the opposite.  
C  The mark of C denotes your tire's load range, or ply rating. A load range of C means that the tire has a ply rating of 6. Letters further along in the alphabet represent stronger tires that can sustain higher inflation pressures. Tires with higher inflation pressures can carry heavier loads.  
R  This letter denotes how your tire was constructed. Radial is the standard construction method for about 99% of all tires sold today.

Trim Options:
SL 4x4SLE 4x4SLS 4x4
P235/70R15 102
Simplified Size: 2357015
Simplified size is useful for shopping and buying tires.
The original tire size for your 1996 GMC Sonoma is P235/70R15 102S. A colorcoded explanation of the 1996 GMC Sonoma's tire size is shown below.
P  This letter denotes the intended use of the tire.
 
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.
 
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:
SL 4x4SLE 4x4SLS 4x4
P235/75R15 105
Simplified Size: 2357515
Simplified size is useful for shopping and buying tires.
The original tire size for your 1996 GMC Sonoma is P235/75R15 105S. A colorcoded explanation of the 1996 GMC Sonoma's tire size is shown below.
P  This letter denotes the intended use of the tire.
 
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.
 
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. 