Leveling Kit Question for 08 Tahoe 2WD

Ive scrolled and scrolled trying to locate this answer but no luck.
I'm on my 3rd Tahoe, but the first I am going to do any modifications on.

I have a 2008 Tahoe LT 2WD. Ive tried to find online how much rake it has but cant locate it. Should I get a 2" or 2.5" leveling kit.

I like what I read about the Rough Country kits too.

I have a 2" on my 2004 and have been happy with the results.