You can use a knock off instead of a puller as the bearings are back to back but I have a thing about beating on an axle with a sledge hammer. I have a puller that I got years ago at a garage sale and you're welcome to borrow it if you can't find one but it's heavy and I think the postage back and forth would be better spent buying a puller. With the right puller I have never had a problem puling a drum so I don't think you need to spend a ton of money to get one. I tighten em up and if the don't pop off I hit them with the torch!