Sorry to even ask, but... Could anyone please go take a peak under their hood for me?

My question is about the two small vacuum lines that connect to the brake booster hose. One line feeds into a rubber “T”, and then those lines go to the top of the injection pump & down to the transmission modulator. The other line feeds the rest of the car’s vacuum system.

Which one goes where - does the transmission control go to the forward port, or the rearward port on the booster hose?

The reason that I ask is obvious – I forgot. The new brake booster hose apparently has a different size restrictor orifice for each of the two ports; they are not equivalent to each other as far as flow rate, and this is important for proper transmission vacuum modulator function.

Thanks everyone!

RTH