Does anybody know if there are any differences between the torsion bars used on the 02-05 regular cab, quad cab, or quad cab long bed 1500's?

If they are, people could interchange the bars for wither a stiffer or softer ride if they want. Like a RCSB t bar on a QCLB, if they were different

I bet Chevy guys can all go between 2500 or 3500 torsion bars on their trucks, so I was thinking maybe we can do something like this too. Are all the part numbers the same?