The hard part is you will need to expand the spring to install. Even when the jack is fully retracted the spring are still pulling the jack up. Probably the best way is to get a couple of dozen of wood shims then bend the spring to open the turns so you can wedge the shims in one at a time until enough are in to expand the spring enough to reach both hooks on the jack. Alternate the shims on each side of the spring so it expands straight. I've seen postings where others have attached the spring between two vehicles to expand enough to get the shims in. What ever will work best for you. Once installed extend the jack and the shims will fall out.