1 ton leaf spring help

[mrhino]

I must say my knowledge of leaf springs is very limited, but below are some pics of my one ton leaf springs. This truck has always had a rear hydraulic lift gate on the back since new. I'm assuming the rear suspension was beefed up to compensate for the extra weight. I have removed the gate and Im looking to soften the ride a bit. Is this a stock set up or is there a leaf added on top and on the bottom? There is a total of 10 leaves. How many does a 3/4 ton, and 1/2 ton have? Im wanting to remove unnecessary leaves, If possible or recommended. Any help in this area would be very appropriated.