I don't get it.
We all like to save money but the possible consequences do not seem to be worth the risk; warped decks and damaged roofs, as Jack stated, among others. I was also one of you guys experimenting UNTIL I found out about the damage the NAPA, Belkamp, Autozone, etc, shocks could cause. I'm sure I spent way more than the $90 cost from one of our suppliers. Buy the $90 shocks from one of our suppliers and have some piece of mind and save the possible repair dollars. Go price a deck lid before you experiment!
Just my opinion.