I got a 2000 silverado and finally picked up some ltz 20" wheels... What size tire would look best on the 2/4 drop? Also, are these wheels polished they look like the have clear coat on top.

 

Not sure if this is the right area for a drop question. I have no usefull information about your post. I believe I have seen the LTZs on 2/4s. Don't qoute me on that.

 

4x4 or 2wd

285/50/20 will work,
may rub a little in the front
275/55/20 ok too

 

I have a 2wd on stock ride height (soon to be 2/4 drop) I have driven on both sizes of tires on GMC Denali 20's and had just a little rub on both. the 275/55/R20 rubbed the front sway bar the worst out of the two but neither were really bad and once they wore down a little I had no rubs out of either size. Im currently running the 285/50/R20 now but looking to buy another set soon.

 

I think I'm gonna go with 275 45

 

275/45/20 is best. you want between a 29" to 30" tire.