Questions on spring

In the Steamworks manual, it lists the dimensions of the spring that will be used in the competition, but when I searched the product number of the spring listed in the rules, the dimensions on the website were significantly different. Is the link broken, or was there an addendum to the manual that I missed?

Are you referring to the length?

The spring needs to be cut down to the game manual specified length, but everything else should be the same.