2013 RAM 3500 Big Horn Tire Sizes

Factory original equipment (OE) tire specifications.

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4x2

Tire Size
LT275/70R18/E
Load Index
125
Speed Rating
S

4x2

Tire Size
LT285/60R20/E
Load Index
125
Speed Rating
R

4x2 (DRW)

Tire Size
LT235/80R17/E
Load Index
120
Speed Rating
R

4x4

Tire Size
LT275/70R18/E
Load Index
125
Speed Rating
S

4x4

Tire Size
LT285/60R20/E
Load Index
125
Speed Rating
R

4x4 (DRW)

Tire Size
LT235/80R17/E
Load Index
120
Speed Rating
R