Yea, what he said.
I've done 73 and 74 A/C cars without removing the boxes a couple of times.
BUT both boxes had been out of the cars before.
That makes a difference and I knew what to do. Working through the glove box, etc.
You are going to do it in the street in the cold in New York?
I feel for you. Hope your car is a non A/C.
And don't stress the lines. The replacement ones don't always fit exactly.
I always leak test them before install too. 15 psi air in a water tank.
