How on earth do you suspend the car up in the air (at home) such that you can support it (fully loaded) yet allow for the rear axle to hang so that you can unbolt the leaf springs at the front pocket.
Then I guess you have to put the car back on it's wheels after you have the connectors in place at the rear to bolt or weld them to the front subframe with the car resting correctly on it's suspension
I just read through the instruction again and I can see there is a conflict. At first I thought you would install the connectors with all 4 wheels on the ground and only tac the inboard side of the connectors in the back and do what you want in the front. Then it shouldn't matter how you jack the car up to lower the rear to weld up the outboard side of the connector. But you need to drop the rear suspension to grind down to the bare metal. So unless you do it twice I don't know.
For my self I'm still wondering if I should bolt or weld or both for the front. A rosette weld would be almost impossible to remove without ruining the SF connectors. I was thinking I might bolt them in and weld the ends to the frame. They would be easy to grind off if needed.