These washers replace the stock offset washer on the upper control arms. Either during alignment or once aligned find the corresponding washer that will “LOCK” the alignment bolt in place. The suspension physically can’t change.
Washers come in a set of 5, each washer has 2 settings for a total of 10 offset possibilities. Recommend 2 sets to do 1 truck, replacing the washer on the nut side of the bolt. In some cases you may get away with 1 set or need more than 1 set.