Oh,yes! EVERY Ram model year '94 or later has one, and in my experience, if you have more than 70,000 mi. on yours without replacing it, it is most likely worn out. I've replaced 2 by that mile marker, and am on my 4th one @ 150,000.
The track bar is the device that locates your front axle sideways relative to the vehicle frame. It is attached to the passenger side of the front axle by a bolt thru a rubber bushing into a bracket welded to the axletube (on the front side of the axle). It is attached to the driver side framerail by means of a ball joint (this is the part that wears out) into a bracket welded to the bottom of the framerail, just behind the steering sector.
When the ball joint wears out, the motion imparted to the steering drag link (bar between the steering sector and the tie rod) doesn't translate into tire turning motion, it instead shifts the vehicle frame sideways relative to the axle. The result is noticable "play" in the steering. If you go over a railroad crossing or other rough section of road at anything it can cause a violent "shimmy" in the steering and front end, if the ball joint is wore out enough. This can be positively scary--trust me, I speak from experience! It will also agravate any brake pull your truck might be experiencing.
They aren't cheap to replace, but Moog or NAPA give lifetime replacement guarantees on their units (cost of a Moog is around $205. 00 last time I replaced one.
To tell if yours is bad, have a friend "saw" the steering wheel back and forth (I like to have the engine running for power assist) while you look for movement in the ball joint. Dodge says up to 1/16" movement is o. k. -- I say B. S. !! I notice quite a bit of "wander" with less than 1/32" of play. Driving with a gusty side wind while towing 18,000# of gooseneck gets quite stressfull
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Hope this helps.
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Dean Jahnz
Black '94 dually (first on the block!), TST 230hp, Transgo shift kit, combo guage, 28' gooseneck camper/hauler, '83 Toyota extreme terrain 4x4.
My motto: The Most is Barely Enough!