IIRC some guy had posted this in the dogs thread saying it was the biggest dog around. I dont know if it is real or not, but I have seen a great Dane that was close to his size, just not as muscular.
I saw this on ebaums today(or maybe CH.com i forgot) it isn't real. It isnt a record. If you search it, it comes up as a hoax. However, the record for the biggest dog is a great dane who is I belive 44in tall(around that) but no where near as big mass wise...