It's listed for my Chevy... I have a truck and not a Suburban, Though. Maybe Suburban listings aren't as good as truck listings.
I have the Lares rag-joint on my truck, and I'm not entirely happy with it, for two reasons. First, there torque specs really deform the rubber with the bolts. Second, my steering wheel is now off about 30 degrees, and I don't know if there is enough wiggle room in the mounting of that new rag joint to fix it. The shaft only goes in one way, so it's not off a tooth or two on the splines... it's keyed. My box has slop in it, but I don't think that's why the wheel is that far off. Dorman makes a rag joint, too. I have no idea if it would be any better, but I kind of doubt it. They also make a whole new steering shaft, which is a lot more expensive.