buster096

A 20x9 with 0 offset is 5" backspace. 20x9 with -12mm offset is 4.5in backspace. Offset and backspace are virtually the same thing. So a 20x9 0 offset 4.5in backspace doesn't exist.

buster096

Also how wide are your tires? 10.5in or 12.5in?

MikeyDubs

Oh ok I really have no idea what back spacing is. I just checked around the forum for pics if what 20x9 with 4.5 backspace just to try and get an idea of how far they stick out. The rim shop must of mixed up 4.5 with a 5 backspace because he said they would only stick out 1". I will be running 33/12.50r20 tires but I'm just buying the rims now and will eventually get the tires when I get some extra cash. I just found a good deal on the rims so I want to grab them now.

TuscanyJC

They would stick out roughly .5-1" further.

MikeyDubs

Ok I just talked to the guy again and he said he calculated wrong. They are 20x9 0mm offset and 5" backspace. Now I just have to decide which one to get 20x9 +18mm or 20x9 0mm. The 0 offset looks like it might stick out too far. It looks like 2" past the OEM fender flares with 33x12.5r20 MT tires.

TuscanyJC

I guess it all depends on how aggressive you want your stance. What wheels are you looking at getting? Also, a pic of your truck might be helpful as well.

buster096

Your tires won't stick out that far. Maybe an 1". I wouldn't worry about it.

MikeyDubs

With the 0 mm offset?

TuscanyJC

With a 0 offset, it's going to stick out at least 2" with the factory flares. Here's a better shot of mine with the Xenon flares.

MikeyDubs

Thanks everyone for all the help! I ended up going with the 20x9 0mm offset! The rims will be here the end of next week! Can't wait! Now I just have to save up for tires. Here are some pics of the rims. I got the off eBay for a great deal! $525 plus $59 shipping!