I replaced the wheels with a cheaper glider that I have. I've looked at many vines looking to replace the inexpensive unit I have, but didn't want to spend the money. I had to drill through the frame on mine to get them to work, but they are larger than the standard units and now my creeper rolls across the ground much easier than before. You may need to adjust your vine, but if you're a little forgiving you can get it working and get a better vine for a few bucks.