Which leaf springs for 2002 Sierra Denali

[demonte1997]

Speaking with General Spring about purchasing new leaf springs for the rear of my truck. They seemed a little confused about the Denali setup and thought it took a lesser amount of springs. Stock, it looks like my truck has a 4 spring setup. I don't see that on their site. I see a 3 or 5 spring offerings from them. Does it really matter what I go with? I understand that weight ratings change for a couple hundred pounds but I don't see much more of a difference.

 

Any help or advice is greatly appreciated.