Superlift 2 full length add-a-leafs with center bolts.
Superlift add-a-leafs can be the only ticket when you want to lift your vehicle 2½-3½ inches without blocks or completely new leaf springs.
Superlift add-a-leafs are also frequently used in conjunction with lift blocks to achieve a taller lift or to compensate for worn out sagging springs.
In the vast majority of cases, long add-a-leafs install directly beneath the main leaf (the longest leaf with the mounting eyes).
This positioning is most beneficial for combating spring/axle wrap-up since strength is added along the full length of the springs.
Also, a relatively thin material can be used so ride quality is not overly firm.
NOTES:
Superlift and Bronco Graveyard strongly recommend replacing the U-bolts, nuts and washers for a safer installation.
Full length (long) add-a-leafs are no thicker than .401".