I installed the same parts about four years ago with no problems. It's time to replace them so I bought four sets for my tandem trailer. The calipers of 2 sets out of 4 did not fit on the bracket slide pins. I contacted Tie Down and an account manager directly. said they didn't make the product they sold to Dexter's store, which still uses the Tie Down brand. A Dexter representative says that when a pin fit condition occurs, the pins or clips are bent to fit. I managed to fit one. I couldn'tβ¦