I recently purchased an 08 ram 1500 quad cab 4x4 laramie.

Although the 20's with 33" street treads are nice looking and sporty......I would like something with a little more rubber and an aggressive tread pattern. Most of what I'm looking at either doesn't come in a 20" rim size and/or would be the wrong size tire.

My question is three fold. What is the minimum wheel size I can run? What is the stock back spacing on the 20" wheels? What is the maximum tire size I can run without a lift. I bought it to tow around my lifted toy and also don't want to affect towing.

 

I can give you two of the three. 17" is the smallest diameter wheel that would clear the calipers and a 33" tire height is the tallest, and about 12.5" diameter.
I could look up the specs on the stock 20" backspacing, but then again so could you, but I'm sure someone will chime in with that answer soon enough...

 

good info. Thanks guys.

 

I agree with Outlaws, 33" tires will look a lot better on 17's. Besides you own a 4x4, tires on 20" wheels don't offer enough flex or flotation to be much use off the pavement (unless your talking about BIG tires like 37"+ on 20" wheels)...

 

Here is a pic of my truck with 17x9 rim with 4.75" backspacing with BFG 285/70R17 the tires stick out approx. 1" past the body.. hope this helps..

 

Thanks guys. I'm going to work on finding some 17's and some mt's.

Anyone need some blingin 20's with street treads....only 1k on them.