54" Blade is PLENTY on a GT. I've used them all, 42", 58" custom, and 54" Haban.......when they get wide and the snow is wet, you have problems....end of story. Even with the blade set straight, in wet snow you get about 2 "rolls" and you have a giant slush "HoHo" and a spinning tractor, chains, weights, it doesn't matter....it just spins!!! Get out the blower or loader at that point!!!