6.1 Hemi 69 Barracuda Fastback Father Son Project

How did you calculate the gas springs you need?
I like this calculator
https://www.dictator.nl/Downloads/EN/Reg.6/614-E-Selecting_and_Calculating_Gas_Springs.pdf
That's awesome. I didn't calculate anything. 8-) Maybe I will if the struts I have end up not working...