Or, you can use the pre-existing holes in the table and drill the front rail. You can use the pre-existing holes in the front rail and drill new holes in the saw table. There are a couple different ways to go about making this fence fit. Note: The fence's sight is adjustable a few millimeters from side to side, so you have a small margin for error in this step. Now we have all the guides we need to line the scale up properly. Using a larger square, extend the pencil mark all the way across the top of the table, and then down the back of the table.

Now, using a small square, extend that pencil mark up the front of the table. Remove the fence and front rail and set them aside. Now transfer the pencil mark from the front rail to the front of your saw table. Use a couple small clamps to make sure that the front rail is fairly level and that everything is secure. Also make sure that the front rail is firmly against the front of the saw. Lay the fence on the table and slide it firmly against the saw blade. Raise the blade up to full height.you did unplug your saw, right? Of course you did. Line up the sight on the fence with the zero line on the guide tube and lock it down. Now go ahead and pop the fence onto the front rail/guide tube assembly. Now, butt the back rail up to the front rail and transfer the mark. Using your square against the front edge of the guide tube, find the 'Zero' line and transfer a pencil mark to the front rail. Go ahead and attach the guide tube to the front rail. The fence's guide tube has an integrated measuring tape, so you have to take care to make sure that it lines up properly.

Delta unisaw fence upgrade