localB.setIdentity();
MatrixUtil.setEulerZYX(localA.basis, 0, 0, PI_2);
localA.origin.set(0.0f, -1.9f, 0.05f);
MatrixUtil.setEulerZYX(localB.basis, 0, 0, PI_2);
localB.origin.set(0.0f, 0.0f, -0.1f);
forkSlider = new SliderConstraint(liftBody, forkBody, localA, localB, true);
forkSlider.setLowerLinLimit(0.1f);
forkSlider.setUpperLinLimit(0.1f);
forkSlider.setLowerAngLimit(-LIFT_EPS);
forkSlider.setUpperAngLimit(LIFT_EPS);
dynamicsWorld.addConstraint(forkSlider, true);