Regular vs Big 10

[87Bob]

I have a bone stock, low option, long box, 1985 C10 305cid 350. I don't plan to lower it or raise it. It is my around the house hauler. I do plan to trick it out a little. I just bought a set of used 8" wide Rallies to refinish and put on it. I have a late model Blazer 4 headlight front end to put on it. It has a tool box which I have had media blasted and is ready for paint. It has a few dings and dents and a little rust and eventually will need paint. Some of the other up grades that are planned is vintage air, an extang tool box tonneau cover, new chrome step bumper, interior redo and a stereo upgrade. Mechanically I'd like to build a torque monster 383 with a gear vendors over/under drive so I can use it to pull a enclosed car trailer. It is just a common everyday driver. Since I do use it to haul loads I saw in another post a reference to a "Big 10" having more leafs in the springs is that to haul heavier loads and pull more weight? Has anyone beefed up a 1/2 ton to give it better weight caring and pulling capacity? I'm looking for suggestions here. Thanks!