2014 Ram 2500 spare tire

[mrugg]

I recently purchased a set of wheels that were from a 2014 Ram 2500. The wheels are factory and I am assuming the tires are factory. 285/60/ 20. My question is what size spare came with these trucks? I looked everywhere for a 20 inch spare with no luck.

 

[Hootbro]

The spare is usually a 275/70R18 tire/wheel combo that is the same basic rolling diameter.

 

[millhunky]

With the spare tire being smaller rim dia. Do u have to put on rear only.

My point.
I had a 2003 1500 and the spare tire would not fit on front. U had to take good tire from rear put on flat tire front and use spare on rear. Is this the same?

 

[Hootbro]

With the spare tire being smaller rim dia. Do u have to put on rear only.

My point.
I had a 2003 1500 and the spare tire would not fit on front. U had to take good tire from rear put on flat tire front and use spare on rear. Is this the same?

Rim diameter is not what is important here, the overall tire diameter is.

285/60/20 = 33.5" diameter

275/70/18 = 33.2" diameter

0.3" difference is nothing. The problem is that some trucks do not come with a true "full size" spare and in those cases, the smaller spare does need to be on the front wheel and not the rear to avoid axle hop/binding and possible damage. This is of course in a RWD mode configuration

 

[mrugg]

The spare is usually a 275/70R18 tire/wheel combo that is the same basic rolling diameter.

Thank you so much.

 

[millhunky]

Well when i had a flat tire the spare didnt clear the front assembly so had to use on the rear for it to spin clearly without hitting.