From what I've seen, get a silverado grill guard from the same year and make brackets that it will bolt to. Also you'll probably want to go with one that's more squared off, not the ones that are all angled and "flare up" with the headlights, that is if you are looking at one with headlight kick outs. The biggest part is making the brackets though, I looked at an astro for sale that had the grill guard on it and it looked great but underneath it was just a mess of welded plate, square tube and bed frame to make it bolt up to the frame. If you already have a winch mount then it would probably be easy to make fit since there would already be something nice and solid to mount to under there.