Helper Leaf Spring set
It is applicable to most of the mini truck.
Made in USA with Japanese instruction.
*Sold as a set.
For mounting you just put in the bolt and mount the lowered leaf.
If you are not using it, if you have 10~15minute you can take it off.
Not much change in car height and as a reference, if you put 100kg thing on the center of the bed, only about 2cm of car height gets lower.