Hi, I'm a little confused. I see 863's advertised as having a 74 hp motor and 863G's as having a 50 hp motor. Is that correct? Second question is what is the lift capacity of the 863? I need to offload concrete siding board from a flatbed trailer. Any help would be appreciated. Gaziger in Dallas Gaziger - fast like a gazelle, strong like a tiger, hence a gaziger.