Went to a car show Sunday, was fine scoping a 1940 Graham and when the owner opened the trunk, I saw the very same lift set-up as the AD Sub. The owner said it was stock ( he has 2 Grahams) but said it was a standard issue to many car companies and has found some on old wagons like Nash,Plym,Dodge,and the 49-57 Chevy wagons. He has found them in 2 different lengths, but had bought the longer one as a spare and cut it down for car # 2. I now recal seeing them on my wrecking yard trips, so look at all longroofs at the yards, not just the Sub..Jon