How do they get the measurement from center eye to center eye ? With the vehicle loaded or unloaded ? I am trying to figure out that measurement on my camper but am confused. 2016 Dexter 3500lb single axle, 5 on 4.5" bolt pattern. While on the camper it is measuring 26" exactly center eye to center eye, yet the only leaf springs avail that I can find are either 25 1/4" or 27" center eye to center eye. I am guessing there is not some new or special leaf spring that is just for this camper ? They make them as cheap as possible, so I'm guessing they would use the most commonly avail (most inexpensive) leafs & nothing special ?
Thanks for the help.
EDIT: Upon further investigation, it seems that there
ARE 26" eye to eye leaf springs available, I was just not looking in the right spot I guess. This must be them:
https://www.etrailer.com/Trailer-Suspen ... 51275.html
Another NOTE:

Every 26" leaf spring I found is made in china
