18" or 20" decisions decisions what to do....

SS1304 · September 30, 2015

So I need new tires on my truck (2010 GMC Sierra 1500) and figured why not get new rims also. I have a rough country 2'' leveling kit on the front. I have 18'' rims right now and can either stick with them and go with a sightly taller tire or get 20'' rims and tires. I know that some of the trucks come OEM with 20's but I want to get aftermarket.

I was looking at getting either 18x9 with an offset of 18mm and a back spacing of 5.63". The tires will be 265/70/18. I think this would fill the wheel well out pretty well and look ok.

The other option was 20x9 with an offset of 18mm and a back spacing of 5.67" The tire I looked at was either a 275/55/20 or maybe a 275/60/20.

I want to have the rims and tires flush or a tick inside the wheel well. I don't want the wheels to be sticking out. I don't like that look on the trucks. I'm not sure what size to go with so it doesn't rub and what would look the best.

MB2008LTZ · October 2, 2015

I believe you will find my tire choices in an 18" size, that being said I would also go for a 275/70/18 or a 285/65/18 size with your level kit. Just my 2 cents.