My measurements are from the ground to the fender with the 2.5" lift.
Pre Lift
LF: 35 7/8"
RF: 36 1/4"
LR: 36 7/8"
RR: 36 5/8"
Post Lift
LF: 38 3/4"
RF: 38 1/2"
LR: 39 3/4"
RR: 39 3/4"
5 kids!?!? Dang man, how have you not gone insane yet? I only have 2 kids and they are still small, so they aren't even enough weight to make a difference, but your in your case you might have more of an appropriate use for the heavy duty suspension than I do. I do ride around empty or...
I can confirm I am that I am running the Dobinsons 2.5" suspension on a 2018 Sequoia Limited that I bought from Exit Offroad. I am also running 285/75R17 tires with this kit with no rubbing. I only had to unbolt a very small section of plastic in front of the front wheels to make this fit.
I...