An add-a-leaf is the budget path — it inserts one leaf to restore sag and add a little lift, but it stiffens the ride and doesn't fix a tired pack. A full replacement pack rides better, carries more predictably, and is the right call if your springs are flat or you regularly run loaded. For a work or overland truck, buy the full pack.

They can, but height is a byproduct, not the goal. Leaf packs are rated for a load and a ride height together; a heavier pack that lifts a bare truck two inches may sit near stock once you add a bumper, drawers, and gear. Spec the spring to your built, loaded weight so it settles at the height you actually want.

Longer, more supple packs flex better, but leaf springs trade some articulation for load capacity by design. Softer packs and shackle-flip or reverse-eye setups gain travel; stiff overload packs sacrifice it for payload. Decide whether the truck's job is crawling or carrying weight, because the ideal leaf pack for each pulls in opposite directions.

Axle wrap comes from the pack twisting under torque, and the fixes are a stiffer pack, a traction bar, or anti-wrap add-a-leaves. Softer, taller lifts are more prone to it, especially on diesel and V8 trucks. If you feel hop under hard acceleration or braking, address wrap before it damages driveline parts — it also chews up ride quality.