# 1999 Ford F-150 Tire Size

Your Ford was manufactured with different tire sizes. To determine the best tire size for your specific 1999 Ford F-150, we first need to determine your rim size. Please review the information below.

## How to Determine Rim Size

Check your existing tires. Your Ford F-150's rim size is the number to the right of the R. In the example pictured here, the tire size fits 16-inch rims.

## Rim Size Selection

Now that you know your rim size, make a selection below to filter your results.

## 16-Inch Rims

### 1999 Ford F-150

Your 1999 Ford F-150 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 1999 Ford F-150.

## LT245/75R16/D

### Simplified Size: 245-75-16

Simplified size is useful for shopping and buying tires.

The original tire size for your 1999 Ford F-150 is **LT245/75R16/D**. A color-coded explanation of the 1999 Ford F-150's tire size is shown below.

LT | This letter denotes the intended use of the tire.
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245 | This number indicates that your tire has a width of 245 millimeters. | ||||||

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 183 millimeters. | ||||||

R | This letter denotes how your tire was constructed. Radial is the standard construction method for about 99% of all tires sold today.
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16 | The tire size was designed to fit rims or wheels that are 16 inches in diameter. | ||||||

D | The mark of D denotes your tire's load range, or ply rating. A load range of D means that the tire has a ply rating of 8. Letters further along in the alphabet represent stronger tires that can sustain higher inflation pressures. Tires with higher inflation pressures can carry heavier loads. |

## P235/70R16 104

### Simplified Size: 235-70-16

Simplified size is useful for shopping and buying tires.

The original tire size for your 1999 Ford F-150 is **P235/70R16 104S**. A color-coded explanation of the 1999 Ford F-150's tire size is shown below.

P | This letter denotes the intended use of the tire.
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235 | This number indicates that your tire has a width of 235 millimeters. | ||||||

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

104 | This tire has a load index of 104, which means it's capable of carrying a load of 1980 pounds (900 kg) or less. A higher number means the tire can carry more weight. A lower number means the opposite. | ||||||

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. |

## P255/70R16 109

### Simplified Size: 255-70-16

Simplified size is useful for shopping and buying tires.

The original tire size for your 1999 Ford F-150 is **P255/70R16 109S**. A color-coded explanation of the 1999 Ford F-150's tire size is shown below.

P | This letter denotes the intended use of the tire.
| ||||||

255 | This number indicates that your tire has a width of 255 millimeters. | ||||||

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 178 millimeters. | ||||||

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

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

109 | This tire has a load index of 109, which means it's capable of carrying a load of 2266 pounds (1030 kg) or less. A higher number means the tire can carry more weight. A lower number means the opposite. | ||||||

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. |

## 18-Inch Rims

### 1999 Ford F-150

The original tire size for your 1999 Ford F-150 is listed below. Tap on the box to view a color-coded explanation of your Ford F-150's' tire size.

Trim Options:

### Lightning

## P295/45ZR18/LL 101

### Simplified Size: 295-45-18

Simplified size is useful for shopping and buying tires.

The original tire size for your 1999 Ford F-150 is **P295/45ZR18/LL 101W**. A color-coded explanation of the 1999 Ford F-150's tire size is shown below.

P | This letter denotes the intended use of the tire.
| ||||||

295 | This number indicates that your tire has a width of 295 millimeters. | ||||||

45 | This number means that your tire has an aspect ratio of 45%. In other words, your tire's sidewall height (from the edge of the rim to the tire's tread) is 45% of the width. In this case, the sidewall height works out to be 132 millimeters. | ||||||

Z | This tire has a speed class of Z, which means it's part of an elite speed class of 149 mph or more (240 km/h). A tire's speed class is less specific than the speed rating. | ||||||

R |
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18 | The tire size was designed to fit rims or wheels that are 18 inches in diameter. | ||||||

LL | The mark of LL means light load. The tire is for light usage and loads. | ||||||

101 | This tire has a load index of 101, which means it's capable of carrying a load of 1815 pounds (825 kg) or less. A higher number means the tire can carry more weight. A lower number means the opposite. | ||||||

This tire has a speed rating of W, which means 167 mph (270 km/h) is the maximum speed that can be sustained for 10 minutes. A higher speed becomes dangerous. |