Product review (5 stars): Back in Service....
The parts were factory and just like the ones I replaced. I had already watched a You Tube video that explained how to take things apart to get to the springs/shocks. However, the included manual gives you plenty of clear detail to do it as well. If your mounting base is bad and the holes are stripped, use nuts and washers to tighten things down. My set did not come with any nuts or washers though. Hopefully my double stack will be ready to go for another 20 years