Add-a-leafs

[454c20]

Over the winter, I plan to go through the suspenion on my 87 1/2 ton 4wd. Not looking to lift the truck really, mainly just firm up the springs some. Original springs are in decent shape and are not broken. I plan to put new bushings on the springs/shackles. I will also be towing a car trailer to bring my drag car to the track, hence why I wanna firm up the back end.

Will I see any adverse affect to add-a-leafs front and back? Bouncy ride? Is a better option blocks (height increase only). Can you safetly use block on the front?

Basically, which one will do better for me? The add-a-leafs supposedly will give me 1.5-2in of lift which is fine. I'd like to put a slightly larger tire on the truck at somepoint but it'll be a driver and tow rig more then anything.

Suggestions?

Thanks guys
Nick