Add-A-Leafs

An add-a-leaf is one extra leaf inserted into the spring pack you already have. It raises rear ride height and adds capacity, and it is the cheapest correction for a truck that squats under a load or sits low at the back after a front lift.

It stiffens the ride, and that is the trade. If you want the height without the added rate, a lift block or a taller shackle does that instead.