I just replaced the windshield glass on my '39 and used the I & I rubber which was way cheaper than Steele. In my case I was returning to the original non-Vee windshield but I think the same procedure should apply. First, the lip must be clean and smooth to prevent a water path. This is where leaks usually occur, between the rubber and the body because you can add some butyl into the groove between the glass and the rubber before installation. Yes, these window installs are different. After doing research I discovered they must be installed from the INSIDE with class in the rubber and cord inserted into the lip groove. Pull the cord from the outside (with lube) and start from the bottom. Takes three people, two inside and one outside. Not sure if the Vee procedure is the same or if one plate can be mounted at a time from the outside. The shop you use must be "old school" and not a chain outfit. Good luck and I have two Vee butt pains (AS1) in case you need backup!