Positive caster makes the wheels track ahead. Lowering the rear should increase positive caster. I stand corrected. Don't know where I got that thought.....

 

Now just to dispel rumors and keep others from suffering DW, I pass this along.

I had DW and I took my truck in to be checked several times. The caster was excessive, right on the edge of where Dodge specified it. 4.6 degrees positive on the right, 4.5 on the left. That is good, it helps prevent DW.

The track bar and bushings checked out fine. The ball joints and shocks were great. Steering was perfect. Nothing wrong anywhere.

I changed the damper and it was gone.

 

The damper just covered it up, something was wrong somewhere.

 

OK, so I have it backwards then. Negative caster is when the turning axis of the wheel (that would be the king pin on a 2wd) is tilted forward of the axle's vertical centerline and positive caster is when the wheel's turning axis is tilted aft of the axle's centerline. Right? So, we want positive caster. So, with a load in the bed, we increase positive caster, which is good. Yes?

Well, then I have to correct my Studebaker story. It had negative caster designed into the front suspension...

After much reading through a several hundred emails that said, "What's that part number again?" and "which damper doesn't work?" I finally figured out what "Death Wobble" is. Wouldn't it be nice if someone were to make a sticky with the basic info as to what it is and how to fix it? Might save a ton of newbie questions like mine on the board. I'm not qualified, knowledgewise, to do it or I would put one together.

 

Some of the old cars had negative caster to ease the steering forces before power steering, but then they would need constant correction as they went down the road.