2005 Ford Ranger - Torsion Bar Isolator

It's the rubber pad that goes between the torsion bar plate and the frame of the truck.

For a while, you couldn't find these anywhere, now generics are plentiful. (Part 6L5Z-5B335-AA)

I designed this as a temporary fix for my own truck, printed 100% solid out of 95A TPU, has lasted two years so far and still going strong.