I don't know how that's the best video he is setting people up for failure he never said what the torque down the nuts to. If you don't do it right you going to end up messing up your axles ball joints tie rods and everything goes
I was told the same thing but only at 1 location. I couldn’t find anything about it online so I checked different auto ones and napas and none of them could find anything about wheel size either
If you need to know the wheel size every auto parts store will ask you can the struts are different if you got 16 inch rims in 19. But the 16 and 18 in rims are the same strut. If you install the wrong one for the 19-in rims your car will ride high and it will feel funny and make a lot