* 245/75R16: This was a very common size.
* 255/75R17: Less common, but found on some models.
To know the correct size for *your* specific 2008 Jeep Wrangler, you should:
1. Check the sticker on your driver's side doorjamb. This sticker will list the recommended tire size and inflation pressure.
2. Check your owner's manual. This will also specify the recommended tire sizes.
3. Look at the sidewall of your current tires. The size is printed there.
Don't rely solely on online information as it might be inaccurate for your particular vehicle. Always refer to your vehicle's documentation for the definitive answer.
