I don't know it but you can find it on realoem.com for sure. My passenger side bolt broke when I removed it and I had to drill out the rest of it. I didn't rethread the hole either. I just used a nut on the backside. I have a video on that as well.
The Bilsteins make for a tight ride, aka, it still rides like a school bus. But, for a 5000 lb vehicle, it can absolutely cut a corner. But it is not a soft ride lol.
Switching over from run flats to regular tires (Continental DSW06) made a big difference in the ride quality. I would do that first before changing the strut.
