Replacing a transmission cooler line is rather basic, not many ways their techs can mess that up.. Also they are specifically trained in that part as if you have the Remco LP-1 Lube Pump installed (I do) they have to actually CUT one of your transmission cooler lines to install it.
So I'd trust General RV, as much as I trust them, to do that one right.
That said, they also messed up the aux-brake install on my Lumina, costing me a set of rotors and pads and shoes and drums. and they failed to put the drip tube on my Dometic 'fridge outside the vent holes like they are supposed to.. TWICE. (out of 2 tries).
So as I said. I would trust them as much as I trust them... or .. you did the right thing.
