You all know that I have been fooling around with my windshield vent, mainly because the windshield is the only part I have home to work on. Seems that my vent handle spring is showing its age, so I gave Walck's a call to see if a new one was available. Guess what? The spring is not sold separately from the handle, so back to the work bench! Had made a couple of springs in the past, so didn't seem like too hard of a project, and believe it or not it was pretty easy. First off was the wire for the spring. Music wire would probably be best but didn't have any the right size, then it hit me...bicycle spoke! Had a bunch from my wheel building days, stainless steel, springy and free. Perfect! So this is what I did: Cut and sharpened the end of a spoke. Put it in the vice and put a 90 bend about 1/4 inch long. Drilled a 1/2 inch hole in a block of wood and stuck the drill bit in the hole for a mandrel. Put the block in a vice. Drove the pointed end of the spoke into the block about 1 inch from the mandrel. Grip the end of the spoke (used vice grips), and keeping strong tension by pulling toward you take 2 1/2 turns around the mandrill in the counterclockwise direction. With the Dremel tool cut the short (nailed) leg to 1/2 inch. Removed the spring and test fit it to the handle. Used needle nose to put bend in the wire and cut off excess. In my case it was about 1 inch before the bend. Put er together and it seems to work fine.