Suburban vs. truck rear springs

[kevinr1970]

On my crew cab that is going to be a short bed, I have a 8-leaf pack, plus the "overload" on the bottom, PLUS an overload above the spring pack (camper special?). I was planning on replacing them with the 6-leaf pack (plus the "overload") from my parts 3/4 ton Suburban.
What I am wondering is, is a leaf pack, a leaf pack, a leaf pack? Meaning, as long as it is the same length (56") eye-to-eye, is the capacity the same? Or are the leafs themselves different from trucks to Suburbans?

This truck will never haul anything near a ton again, and at most it will tow a car trailer a few times a year. Reducing some of those leafs should help the ride quality I would think?