@svtcards
Hello, buying a BII to use as a family vehicle in stock form was seemingly safe. Once the decision to improve it's ability to handle inclement weather (addition of 4" suspension and trail worthy bumpers) was approved, it needed to be as safe as practical.
When I looked into how to stabilize the BII chassis, most of it was straight forward, wider axles and tires; the surprise was the affect of the James Duff LLC dual 70/30 shocks on all four corners.
I installed a limited slip D35/8.8 from a 94 Explorer, this widened the stance approximately 1" front and rear, then Mickey Thompson Baja Belted 33×13.5R15's. These 2 changes made a noticable improvement but with the James Duff (JD) kit, they may not have been necessary.
The dual JD 70/30 shocks eliminate nearly all body roll because each bank of shocks performs different depending on which way the vehicle turns. Turning to the left the driver's side shocks each offer 30% resistance against extending while the passenger side shocks each provide 70% resistance to retract; the two shocks at 30% each are a little more resistance than a normal 50/50 shock so that bank floats very smooth, the two 70% shock work like three 50/50 shocks and present an appreciable reduction in piston retract...this keeps the vehicle from being able to lean outward during the turn. Turning to the right the roles are swapped, no button pushing, buzzers, bell dings, emails or infotainment system required.
While I am not certain how this will perform on a lowered SUV, I can only imagine it working better.
I found that the in front of the axle front sway bar works better than the radius arm bar, I prefer urethane bushings over rubber and though my department of motor vehicles lists it as a SUV, it feels like a truck, so I drive it like a truck. Had lowered it, I would definitely of use an Explorer 8.8" rear but kept the springs under the axle; aside from widening the axles, that was Ford's main change to stabilize the Explorer, verses the Bronco II setup.