Serge, <br> Just a thought... The loads on the rear beam are veritcal and up. Drilling holes in the bottom of that beam shouldn't hurt you. The track on the top of the beam helps some, but the loads get transmitted from the traveller track through the attachments and then to the beam. If you skimp on the track attachments, that is where you will fail (i.e., stripped threads and screws will pull out). I was wondering if the larger screws in the track will still be flush and let the traveller car pass over it easily. In the end, I think the most robust fix is to drill holes in the bottom of the beam to allow you to put the washers and nuts on the track attachment screws. <br> <br>Les Gallagher<br><br>Les Gallagher <br>Inter 17R USA 104 <br>"little yellow boat"
