Heater hose routing question

[donthekawguy]

Mt truck didn't have a heater when I got it and now I have gathered all the parts I need to hook it up. My question is, which hose and fitting goes on the intake and which one on the pump. The heater core is self explanitory I'm just not sure which is which on the motor side. I would guess the smaller one goes from the pump to the lower connection on the core and the bigger one from the top connection on the core to the manifold but I'm prbably wrong. Pics would also be nice. Thanx!