Review on 🔧 Enhanced Rear Coil Spring Set - ACDelco Professional 45H1137 for Optimal Performance by Kelvin Hernandez

Fits my 2008 Mercury Grand Marquis. Compatibility is likely not listed this year due to the original air spring, so this is not a direct replacement. My car came with a Ford constant rate coil spring which was great - comfortable, not floaty. However, after sitting on the slope in my driveway, it started to shrink and the muffler started scratching the driveway every time I parked. it was too painful to live with. I eventually switched to this Delco AC I researched and found that the spring rate was about the same as the original Ford, around 100psi, as opposed to the 163 quoted for the Moog. I'm wondering why this information isn't listed everywhere in the product specs, I had to search for 30 minutes to find this information. quite comfortable and a good compromise between maintaining ride height and comfort.