I just replaced the right front spout on my 2955. You will need a square tip screwdriver, a pocket knife and a small tube of silicon caulk.
Use the knife to cut away the silicon caulking and pull back the rubber trim enough to get at the screw. Remove the screw and pull the old spout down and out. Slip the new spout into place and replace the screw and trim. The screw will go thru the new spout with ease, no need to drill. Recaulk and you're done.
BTW-I'm still using clothes pins and they still work. When I replaced the spout I still used the old clothes pin.