What's the ram 1500 steering wheel size?

The size of Your Ram 1500 steering wheel depends, largely, on the model year. Different generations of the 1500 came with slightly different sizes of steering wheel, but it's generally safe to assume that whichever model year You might have, You'll be within a small, predetermined range. Your Ram 1500 steering wheel will be between 14.5 and 15.5 inches in diameter, but if You're looking for a steering wheel cover, You may want to go a step farther. Grip circumference also varies slightly between model years, so You should look for a wheel cover that was designed with Your model year in mind. This will ensure that You get the best fit, even if You need to stretch it a bit.