00 and 01 (I think) have bigger control arm hardware than previous years. I had the same issue trying to buy hardware and being given the incorrect size.

 

Ya I suspect that is the case. What is interesting though is that all of the parts stores I checked - Rockauto, Autozone, O'Reillys, Summit Racing - have this wrong. I suspect they are all drawing from the same/similar databases that have the incorrect sizing info.

 

These folks supposedly sell the hardware for the 2000-2002 Dodge Ram 4x4s...

https://www.spohn.net/shop/2000-2002...2500-3500.html

https://www.spohn.net/shop/2000-2002...2500-3500.html