Anyone know how many Newton gas stuts for the lid for this trailer?. Have to buy new but stickers are gone.

 

I have an Aluma trailer and the gas struts went away so I took the measurements and went on ebay thought I needed 2 100lbs struts ordered them but when they got here they were almost to stiff so I took one off and put the weak one on one side works great. try that but I think 50 lbs or 75 each would work. I had the stickers on mine but wasn't willing to spend what the manufacture wanted.