Honestly when I saw the header for this I went OMFG another person that's asking if they can fit 31's on a stock suspension etc, WHY can't people use SEARCH?!
I wasn't going to look, but it's like a car wreck as you drive by - you HAVE to look! lol

OK so a GM forum, possibly a 1/2 ton, 2" leveling kit & then they ask about a t bar twist.
GM doesn't make cars under that label so it's a truck.
I'd say sure if you go to 15" rims & tires to fit 33's.
If it were in here I'd/we ask for more specifics IE: what you're driving, stock tires now (probably 17") etc.
2002 Chevy's (on a GM forum?) had 15" rims on a full size truck? Why else would they be asking about 33's?! Old school or whatever but 33's are on 15" rims in the way I see them/refer to them as. 33's on a 17" rim isn't the same IMO, sidewall is shorter & my old skool says NO, that's not a true 33" tire. If it/they are out there. Sure there can be the metric equivalent but nahhhh.

 

Actually, gminsidenews.com is about all GM, not just GMC, so who knows what kind of Chevy he's talking about.