As some other people have noted in their reviews, these are very strong.Opening isn't a huge issue, as long as you're mindful you should have any issues, the lift gate doesn't really open too fast.Closing it is probably a bigger issue, there is so much tension I worry about the glass breaking, but if you're careful you should be fine.You could probably get away with ordering one of these instead of two, keep one old support and buy one new support to balance out the tension.***UPDATE*** As someone pointed out below, it might not be a good idea to only replace one, I have no experience one way or the other, but it's a good point, the uneven tension could possibly break the glass. ***