Yes, with 315's. you need to center the axle. Chances are your passenger side is going to rubb the inner wheel well. Up to 305's, it just a matter of aesthetics, but if you go larger than 305's you will need one.
Single Adjustable Panhard Bar with Poly Bushings from BMR.
PHR006
BMR Panhard Rod, DOM, On-car Adjustable, Polyurethane Bushings (2005-2014) - Revan Racing, Inc.
Van
thx Van, ordered!
Single Adjustable Panhard Bar with Poly Bushings from BMR.
PHR006
BMR Panhard Rod, DOM, On-car Adjustable, Polyurethane Bushings (2005-2014) - Revan Racing, Inc.
Van
If it's not rubbing then it's just a matter of looks. If you can't live with it get a new adjustable Panhard rod and center the rear. No alignment needed.
The difference between the two is that one has two poly bushings and the other has one poly and one spherical (it will have a bit less deflection that the poly/poly).
The spherical rod end itself will have no deflection. The height of the arc (or saggita) the bar swings in will also be far more consistent throughout the dynamic range than with a poly or rubber bushing as well.
How long do these things typically stay adjusted? I ask because I think you adjust it, and drive it hard how long does it take before it needs to be Re-Adjusted?
Once adjusted, you should never have to readjust unless you make a change that requires fine tuning. The jamb nuts will stay in place if tightened correctly. For a bit of extra peace of mind, I added a few drops of blue loctite on mine and it's held fine for two years so I have no doubt it will hold until I change it.