The only thing common about the two is that they both can accomplish pointing the headlights correctly.
Old school of hard knocks physics...take one boy ms let him sit on one side of the teeter totter...take another smaller boy on the other end...what happens?
The smaller boy sits in the air while the big boy sits on the ground....
Now...stand a cinder block on its end under the seat and have the bigger boy sit down...likewise have the smaller boy sit on the other side....
Have the forces changed? No...the forces are the same even though the boys are sitting relatively even on the teeter totter...
So what changed?
The only thing that changed was the ground height...instead of the big boy sitting on the ground...he is now propped up by a cinder block.
Applying this principle to a truck and you can see just how dangerous it is having that "little boy" out in front with all the breaking and steering responsibilities... The only problem is that he can barely get his toes on the ground...
Not sure what thread you are talking about but there is danger in a overload situation like this. Big time.
Thanks!
Jeremiah