I took some belts and buckets that were narrow and not to tall from a small car then I welded a angled pipe on rear of my roll cage to mount the ratchet device.It was a pain because the ratchet has a inertia device to lock the belt in a accident.You have to get the angle just right before you weld the new pipe in.The only problem is on prolonged steep inclines the inertia device gets tilted and locks the belts prompting complaints from some passengers.My 99 Dodge extended cab has belts built into the seats but its way to wide for the Bronco.My inlaws just bought a new Dodge van that has middle row seats with seat belts built in to the seat.But I don't know if they are small enough to fit side by side between the fender wells.That was my problem.Mine are a tight fit but its better than nothing and it looks fairly well.