2008 Ford F-250 Super Duty XLT Tire Size

Your 2008 Ford F-250 Super Duty XLT 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 2008 Ford F-250 Super Duty XLT.

Trim Options:

4x2 Crew/Super Cab4x2 Reg. Cab4x4

LT265/70R17/E 121R

Simplified Size:  265-70-17

Simplified size is useful for shopping and buying tires.

The original tire size for your 2008 Ford F-250 Super Duty XLT is LT265/70R17/E 121R.  A color-coded explanation of the 2008 Ford F-250 Super Duty XLT'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.

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 185 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
17

The tire size was designed to fit rims or wheels that are 17 inches in diameter.

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.

121

This tire has a load index of 121, which means it's capable of carrying a load of 3190 pounds (1450 kg) or less.  A higher number means the tire can carry more weight.  A lower number means the opposite.

R

This tire has a speed rating of R, which means 105 mph (170 km/h) is the maximum speed that can be sustained for 10 minutes.  A higher speed becomes dangerous.

Trim Options:

4x2 Crew/Super Cab4x2 Reg. Cab4x4

LT265/70R17/E 121S

Simplified Size:  265-70-17

Simplified size is useful for shopping and buying tires.

The original tire size for your 2008 Ford F-250 Super Duty XLT is LT265/70R17/E 121S.  A color-coded explanation of the 2008 Ford F-250 Super Duty XLT'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.

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 185 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
17

The tire size was designed to fit rims or wheels that are 17 inches in diameter.

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.

121

This tire has a load index of 121, which means it's capable of carrying a load of 3190 pounds (1450 kg) or less.  A higher number means the tire can carry more weight.  A lower number means the opposite.

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.

2008 Ford F-250 Super Duty XLT - Similar Models

The 2008 Ford F-250 Super Duty XLT has similar models that may have different tire sizes.

2008 Ford F-250 Super Duty FX42008 Ford F-250 Super Duty Harley-Davidson Edition2008 Ford F-250 Super Duty King Ranch2008 Ford F-250 Super Duty Lariat2008 Ford F-250 Super Duty XL