So I replaced the factory rear shocks with these Bilsteins. The bottom was fine for installation, but on my '99 Toyota 4runner SR5 4WD V6, when I used two different tools to attach the nut to the top, it wasn't a very fun job. There's no room to work in there anymore and now you have to use a 17mm flex wrench and a torque wrench on a 3/8" flex head ratchet to even get into that space to tighten that nut to back up. I know my truck is old but for a future installation the company should think about it to make things easier. I hope I can get rid of these bumps for years to come, knowing that removing that top nut won't be easy.