I ordered a tri-axle kit by mistake, no problem, I just spent extra parts and some money. Pulling the parts out of the trailer, I was surprised to find that most of the bearings were gone and the forks had turned into a large oval. I had a lot of pops and tears so I knew there was a problem. They fixed the issues and work great. However they are made to press into the temple on one side, I solved that with a sledgehammer and anvil but keep that in mind. I have been completely satisfied with the product and consider it the best investment in my system.