Bill its reasonable to think my burb would handle the snow better than the pickup, but there are two other factors.
1) Body parts to repair a '72 aren't too hard to find. Body parts for a '55 GMC Suburban are very hard to find. I don't want to risk a wrinkled rear fender or some other rare bent steel...
2) I drained the cooling system over the weekend because it didn't have enough anti-freeze to deal with the projected lows, and I haven't refilled it yet.
If its not one thing, its three or four others...