Originally Posted by texanstetson
The Sahara has 18 inch wheels. I am not sure if they will be 8, 8 1/2, or 9 inch in width. Looking at all the wheels availabe for the Sahara they are offered in those widths.
Stock Sahara wheels are 18x7.5.
If I understand you correctly, you are just wanting to change wheels, but keep the stock tires? That is fine, but you aren't going to want to go with too wide of a wheel because the stock tires will look really stretched on anything much wider. I would stick to 8" or 8.5" widths personally.
I generally would NEVER recommend anyone purchase 18" wheels. Only reason I am talking about them here is because it seems like you want to stick with the stock tires. If you aren't wanting to stick with stock tires, then that changes my recommendations completely, and we will also need to start talking about lesser backspacing and things of that nature.
What are you wanting to achieve with the wheels? Just a better look than stock? Wanting to upgrade the tires to a larger size at the same time? Planning on going offroad?
Also, you don't need to worry yourself looking for black wheels specifically on a Sahara. You can just look for pics of black wheels on any year JK (07-current). Only difference with the Sahara as compared to the others is the body colored fenders. And they are even available on the Rubicons for 2012.
Here is a massive thread over at JK-F devoted to black wheels.
And, just for kicks, here are some awful pics of my newly installed black wheels (16" wheels wrapped in 33" tires).