Great thread, learning a lot. Have 5100s ordered for all 4 corners. 2018 4x4 SR5 model. 95% daily driver, occasional mild trail use. Here are 3 options I am considering, let me know if any issues on the last two:
1. .85 front setting, nothing else done to 4runner, seems pretty solid.
2. 1.75 front setting, 1" cornfed spacer on oem spring in rear.
3. 1.75 front setting, Dobinson 599 springs in rear
For options 2 and 3, any challenges or concerns on those? Seems like others are doing variations of those. Any input on which is better for 2 and 3 appreciated. Not worried about cost as all 3 options are very affordable it seems.