Jay
Admin
It is a component of the rear suspension that connects the axle to the body. Basically it's a straight beam with two large bolts at either end.
When lowering a vehicle you can upset the vehicle's alignment (the way the wheels line up with the front axle) and so may need to replace the standard panhard rod with an adjustable version.
Here's the theory:
And here's a rear axle diagram (the panhard rod is item 48740):
There are a few different aftermarket units to choose from:
RSR
Whiteline
Cusco
And here's a few handy links:
RSR Rod details (RSR site)
TGTT Discussion
Hope that helps!
Jay
When lowering a vehicle you can upset the vehicle's alignment (the way the wheels line up with the front axle) and so may need to replace the standard panhard rod with an adjustable version.
Here's the theory:

And here's a rear axle diagram (the panhard rod is item 48740):

There are a few different aftermarket units to choose from:
RSR
Whiteline
Cusco
And here's a few handy links:
RSR Rod details (RSR site)
TGTT Discussion
Hope that helps!
Jay