Never call and order
I was fixing a home made trailer and went by the mesurements as there was no part numbers left. They didn't have an exact match so I called to duble check. The lady who answered was super nice and very helpful. I told her sense the new spring set was taller that I would have to do both springs on the single axel trailer, and I need 3 "sets" of hangers as one spring has 2 hangers and the other only had 1. She never said that 1 set isn't 1 hanger but 2. So now I have an extra set I had to send back and was charger return shipping for parts I didn't need. So I would say get part or upc numbers and order it your self so you car read the checkout list