I just got a set of Rancho quicklifts struts. One of the struts was missing the nuts that go on the top of the struts. Must have fell out the box
The nuts look like they are the interference fit. They look oval instead of round.

I was thinking about getting some nylock nuts instead of waiting to get nuts from Rancho/Rock Auto

What would you do?

 

Nylocks should work, or you could "double nut" em, tightening the top nut onto the bottom one, effectively doing the same thing. Or use locktite.

 

yep...look what was holding on your stock struts..