Angus, how does the glazing strip and seal draught vertical rail attach? Does the glazing strip have an adhesive backing? Seal draught rail pressure fit into the guide rail (MUC3770)?I removed the windows to do it on mine. Not sure if it can be done with out removing them, but it would not be easy or save any time if you could. Removing the windows is not hard, and the Garrison kit has new closed end rivets.