You guys have problems I just can't relate to. But since I am a compassionate guy I went out to my 05 base and opened the hatch.
If you want to use the existing mounting points there is not much room for longer struts. You really cannot see them with the hatch closed but I noticed that there is about 10mm of strut rod that have grime on them. That may indicate, but I am not sure, that there is room for a 10mm longer strut. However if these 10mm are designed as a reservoir for the gas and oil then my hypothesis is wrong.
If you move the mounting point on the body down by a few mm you should be able to use a longer strut.
How long? to find out I would disconnect both struts and open the hatch carefully beyond the normal limit and observe when things get too tight in the roof area.
You also need to maintain an angle between the lower mounting point and the hinge of the hatch to avoid difficulties when closing. Trigonometry should help figuring out the extended length of the strut. You will have a triangle between points A (lower mounting point on the car), B (upper mounting point on the opened hatch) and C (hinge pin of the hatch hinges).
Last edited by vibrologist
on Mon Jan 19, 2015 9:25 am, edited 1 time in total.
"It is important to know the difference between 'accurate' and 'precise' even if you are neither!"