why does my 1st gen 1998 4wd tacoma sag about 2" on driver side(mostly rear)

Maybe about 5 months ago i replaced the leaf springs and all shocks. before the replacement the drivers side was sitting lower than passenger and mostly noticeable from behind the rig. after the replacements the sag did not go away and was almost more noticeable than before. tried to find an existing thread but couldnt so i started a new one.

i only weigh about 150lb and though my gas tank is also on the driver side, it sags on an empty tank and with an empty truck bed as well.

why might this be happening, and how do i fix it?

 

Taco lean. Lots of threads on here if you search.

Easiest remedy is put a small spacer (3/8") on top of driver side coilover.

 

Even if the sag is primarily in the rear end only, would you recommend this solution? The coilovers and front is visually pretty level.

 

Ya it's a bit counterintuitive. I have a really thin trim packer that does a bit but not much. Gonna try 3/8" while I have the front end all apart for LBJs.