When I opened the box I found these are high performance devices! They are meaty! They fit snugly on the hub and the wheels fit snugly on top. Hub centering lip ensures firm contact. They feel good once installed. I will check and tighten them after the first 50 km. I will update this review if there are any issues. I cleaned the bushings as best I could and pulled out the stud holders. I had to use a steel brush to remove some rust from the rear hubs. They barely sat on the hub due to rust. After removing the surface rust, I applied a small amount of lube to the hub only and lightly tapped the seals with a rubber mallet to ensure they were seated properly. I used red Loctite and tightened them to 95 ft lbs. I bought these for my wife's 2017 Jeep Wrangler to add a slightly wider wheelbase. She also wants to add 35 soon. This pushed her wheels outward and keeps the big tires from rubbing on the control levers. We just need some high clearance fenders.