"Torsion Box" is a neologism which occurs most frequently in amateur woodworking circles and is gradually replacing the older terms: "box beam" and "stressed skin construction".
It is the twistiing of something
Torsion
Torsion means twisting or being twisted. Intestinal torsion can be fatal.
torsion
Torsion strength measures the largest torsion force the material can withstand and still spring back into its original shape.
Vehicle does not have torsion bars
Instead of using coil springs on the front suspension torsion bars are used from the lower control arms to the frame ( my 1995 Ford Explorer 4x4 has torsion bars , my dads 73 Dodge Coronet had torsion bars ) If you look at a lower front suspension that has torsion bars you will see the torsion bars going from the lower control arms rearward
A Dodge Ram does not have torsion bars.
The tundra does not have torsion bars, buy a lift.
I'm pretty sure that only 4WD trucks have torsion bars.
A 2WD Tahoe does not have torsion adjustment bolts, it uses front coil springs and not torsion bars.
The 1st generation Nissan Pathfinder, 1987 - 1995 had a torsion bar suspension on the front end of the vehicle. There is a driver's side and passenger's side torsion bar and they are not interchangeable. 1996 - 2009 models do not use a torsion bar.