Interesting. mine did not look like this at all. my mfg date is 10/2004.
I will try and find picture but it is a real Nut with a piece of metal pressed into the nut with clips on both side that attach to the shock mount. I think I misspoke early saying the fronts were the same as the rears. That isn't right. The rear was the same pressed technique but the metal didn't wrap around the mount. just a straight piece
Here is rear:
2004 Dodge Ram 2500 SLT Quad Cummins 5.9 4WD