Parts for your 2006 Subaru Tribeca-Rack boots

2006 Subaru Tribeca rack-boots: what they do and when to replace them

Rack-boots are absolutely fitted to the 2006 Subaru Tribeca (B9). Technical references including the Subaru Factory Service Manual for the 2006 Tribeca (Steering section), the Subaru FAST electronic parts catalogue, and major aftermarket parts catalogues list protective steering gear bellows—commonly called rack-boots—on both sides of the vehicle’s rack-and-pinion assembly. They’re a standard part of the hydraulic power steering setup on this model.

On a Tribeca, the rack-boots seal out grit and water while allowing the inner tie rods to move freely as the steering works. They keep the rack teeth and inner joints clean and lubricated, and they help equalise air volume as the rack travels side-to-side. If a boot cracks or splits, road grime and moisture can get in, accelerating wear of the inner tie rod and the rack itself. If power steering fluid is found pooled inside a boot, that’s a red flag for an internal rack seal leak rather than just a boot issue.

As part of routine servicing, the rack-boots should be inspected at each service or WOF/roadworthy—look for perishing, splits, loose or missing clamps, and any sheen of fluid. Typical signs they’re due include:

• Visible cracks or tears in the bellows
• Grease or fluid weeping at the boot ends or clamps
• Notchy feel or free play from a contaminated inner tie rod

Replacement is straightforward for a trained tech. The outer tie rod end is released from the knuckle, the old clamps are cut, and the boot slides off. It’s best to replace boots in pairs and always use new OE-style clamps—cable ties are a last resort. A light smear of silicone grease on the boot lip helps it seat without twisting. Counting the turns when removing the outer tie rod end or measuring the tie rod length will keep toe close, however, a wheel alignment check afterward is smart practice, especially if the tie rod position changed at all.

If a torn boot went unnoticed for a while, budget for inspecting the inner tie rod and checking the rack for play. A fresh set of boots, snug clamps, and clean, dry bellows will keep the Tribeca’s steering happy for many more kilometres.

Popular questions about 2006 Subaru Tribeca rack-boots

Are rack-boots the same as CV boots?
No. Rack-boots protect the steering rack and inner tie rods, CV boots protect the constant-velocity joints on the driveshafts. Different location, different job, different parts.

Do rack-boots need regular replacement?
There’s no fixed interval. They’re replaced on condition—when cracked, split, perished, or contaminated with fluid. Inspect them at every service or WOF/roadworthy.

Will replacing a rack-boot require a wheel alignment?
If the tie rod lengths are kept exactly the same, alignment may remain close. Still, best practice is to check and adjust toe afterward, as even a small change can affect tyre wear and steering feel.