Theres nothing more annoying than trying to get something into the boot and the tailgate closing on your head. I finaly plumped to by some Vectra gas struts in the hope that they may fit. You'll also notice the solar charger being installed.
Off came the old ones and luckyily the replacment from the vectra fitted.
Wow a miricale the boot nolonger clangs my head every now and again.