Tie Rod Ends with Fitting Position Front and Rear, Front for 2001 Subaru Impreza Outback

A tie rod end is the last joint between your Subaru Impreza's steering rack and the wheel, and it is one of the few components where failure means losing steering on that side entirely.

That is why play here is treated differently to play anywhere else in the suspension.

Inner and Outer Tie Rod

Two joints sit in series and they fail differently.

The inner tie rod threads into the end of the steering rack and carries a socket joint, usually hidden under a rubber boot. It allows the rod to pivot as the suspension moves through its travel.

The outer tie rod end bolts to the steering arm on the hub carrier through a tapered stud and castellated nut. It allows the wheel to steer and to move vertically at the same time.

Between them sits the adjusting sleeve or the threaded section that sets toe. Turning it lengthens or shortens the assembly, which is the adjustment an alignment technician uses.

Inner and outer tie rod wear produces similar symptoms from the driver's seat, which is why the diagnosis matters before ordering parts.

Bad Tie Rod End Symptoms on Your Subaru Impreza

The signs build gradually and they are worth catching early.

Play in the steering is the most common. A small amount of free movement at the wheel before the front wheels respond, which gets worse as the joint wears.

A knock or clunk when turning at low speed, particularly over a bump or into a driveway, where the worn joint takes up its play against the load.

Uneven or feathered tire wear, since a joint with play lets the toe angle vary rather than holding where the alignment set it.

Wandering at highway speed, where the car needs constant small corrections because the wheels are not held precisely.

A squeak when turning, which is a dry joint where the grease has escaped through a split boot.

And vibration through the steering wheel, usually at speed, though that has several other possible causes worth ruling out.

Alignment that will not hold between services underlies most of these, because a joint with play cannot maintain a toe setting.

Why the Boot Matters More Than the Joint

Most tie rod ends do not wear out. They fail because the boot gives up first.

The joint runs on grease sealed inside a rubber boot. While that seal is intact, the joint is protected and lasts a very long time.

Once the boot splits, grease escapes and road grit and water get in. From that point the joint wears rapidly, going from tight to noticeable play in months rather than years.

That is why a split tie rod boot found at a service is worth acting on immediately, and why replacement boots exist as a separate part on applications where the joint itself is still sound.

Checking the boots takes seconds whenever the car is on a hoist, and it is the single most effective thing you can do to extend tie rod life.

Checking for Play

The test is straightforward and it is worth knowing how to do it properly.

With the car supported and the wheels off the ground, grip the tire at the three and nine o'clock positions and push and pull alternately. Movement with no corresponding movement at the steering wheel points at the tie rod ends.

Have someone else watch the joint while you do it. The movement should be visible at the joint itself rather than being inferred from the wheel.

For the inner joint, feel along the rod through the boot while the wheel is rocked. Play there means the inner socket rather than the outer end.

Check both sides, since they rarely wear at the same rate and finding one tells you nothing about the other.

Any detectable play in a tie rod end is a replacement, not a monitoring item. This is not a joint where a small amount of movement is acceptable.

Greasable and Sealed Joints

Two construction approaches exist and the difference affects service life.

Sealed for life joints are packed with grease at manufacture and closed permanently. They need no attention, and when the grease is gone or contaminated there is no way to restore it.

Greasable joints carry a zerk fitting, which lets fresh grease be pushed in at service intervals. That displaces water and contamination and extends the joint's life considerably.

The catch is the same as anywhere else on a vehicle. A greasable joint only delivers if somebody actually greases it, and a fitting that has never seen a grease gun offers nothing.

Over greasing is the other risk, since forcing too much in can split the boot and create exactly the problem the grease was protecting against.

For a vehicle that sees water, mud or salt, a greasable joint added to the service schedule is worth having. For one that rarely gets looked at between services, sealed is the more realistic choice.

Why Subaru Impreza Tie Rod Ends Are a Safety Component

Worth stating plainly, because tie rod ends are not a component to monitor and revisit.

If a tie rod end separates, the steering rack is no longer connected to that wheel. The wheel is then free to turn under whatever forces the road applies to it, and the driver has no control over it at all.

Unlike most suspension failures, there is no partial function remaining and no backup linkage. The connection is either there or it is not.

That is why any detectable play is a replacement rather than something to watch, and why a split boot is treated as urgent rather than cosmetic.

It is also why these are checked at every service and why an inspection failure for tie rod play is non negotiable.

Corrected Tie Rods for Lowered Cars

Here is where a tie rod end becomes a tuning component rather than a wear item.

On a lowered car, the arc the tie rod swings through no longer matches the arc the control arm swings through. The result is bump steer, where the wheel toes in or out by itself as the suspension moves.

A corrected tie rod end repositions the outer pivot point so those two arcs track together again at the lowered ride height.

That is a different product to a replacement tie rod end. It is not restoring a worn joint, it is changing where the joint sits to correct geometry that the ride height change moved.

These are supplied as part of roll center and bump steer correction kits on most applications, since changing the suspension arc and the steering arc together is what produces a result.

Fitting corrected tie rods to a car with worn joints solves nothing. Replace the wear first, then correct the geometry.

Tie Rod Service Kits

Where a correction kit has already been fitted, service kits supply the replaceable parts.

A tie rod service kit covers the corrected rods on their own, which suits a car where the ball joints in the rest of the kit are sound and only the rods have worn or been damaged.

That matters because these are engineered components rather than consumables, and replacing a complete kit to renew one half of it is poor value.

Check the service kit matches the original kit part number, since the correction geometry differs between applications and a rod from a different kit changes the result.

Replacement and What It Costs

Cost splits between the joint and the labor, and the labor varies with position.

Outer tie rod end replacement is usually accessible, unbolting from the steering arm with a separator and threading off the adjusting sleeve. It is among the more straightforward suspension jobs.

An inner tie rod is considerably more work. It threads into the rack behind the boot, often requires a dedicated inner tie rod tool to reach and turn it, and the rack boot has to come off and go back on correctly.

That tooling requirement is why inner tie rod replacement costs more than the part suggests, and why many people do the outer themselves and leave the inner to a workshop.

An alignment afterward is mandatory in both cases, since any change to the assembly length changes toe directly.

Fitting Them Correctly on Your Subaru Impreza

Count the threads or measure before removing anything, so the replacement goes back at roughly the same length and the car can be driven to the alignment.

Use a separator on the tapered joint rather than hammering the steering arm, which damages the arm and can crack it.

Fit a new castellated nut and split pin where the design uses them, and never reuse a split pin.

Torque the taper to the figure in the specification. These joints rely on the taper seating rather than on clamping force, and an under torqued taper can work loose.

Have the alignment set before the car returns to normal use, since toe affects tire wear immediately and steering feel along with it.

Find Tie Rod Ends for Your Subaru Impreza

Tie rod ends belong to our tie rods lineup, alongside roll center kits for lowered cars.

Select your Subaru Impreza to see the corrected tie rod ends and service kits available for it. If the complaint is play rather than bump steer, replace the worn joints first, since correction hardware fitted to a loose joint will not deliver what it should.