You can purchase a complete adjustable panhard rod from us, or you can buy these DIY adjusters that can be used to modify the oem panhard rods.
Installation requires cutting the rod and welding the joint in place.
If the rear of the 80 Series Land Cruiser is lifted beyond 3"-4", the rear pinion angles might be changed enough to introduce vibrations.
These joints can be installed in the rear upper control arms to make them adjustable. This will enable you to correct the pinion angle of the rear differential. The adjuster consist of a left and right handed male pin with a center sleeve that is treaded to match. This allows for adjustment of the arms without removing them from the vehicle.