Parts for your 1998 Nissan Navara-Rack boots

1998 Nissan Navara rack boots: what’s used and why it matters

Based on technical references, rack boots are relevant on 1998 Nissan Navara 2WD models but not on 4WD models. The Nissan D22 Factory Service Manual (Steering/ST section) specifies rack-and-pinion steering for 2WD, which uses bellows-style rack boots on each side of the steering rack. For 4WD D22, the manual shows a recirculating-ball steering box with a pitman arm, centre link and idler—there’s no steering rack, so no rack boots are fitted. The Nissan FAST parts catalogue mirrors this: 2WD lists steering gear boots, 4WD does not.

If fitted (2WD models), rack boots protect the steering rack’s inner tie rods and rack bar from dust, water and grit, keeping grease in and contamination out. They’re the flexible concertina-style bellows clamped to the rack housing and the tie rod. On a 1998 Navara that sees plenty of outback roads or coastal air, intact boots are crucial to stop grit chewing out the rack seals and inner joints, which can turn into sloppy steering, leaks and expensive rack replacement down the track.

During routine servicing, they should be checked for cracks, splits, loose clamps, or oil/grease weeping. Tell-tales include a wet boot (from a leaking rack seal), visible tears in the bellows, or crunching/knocking over bumps as grit gets into the inner joint. If a boot is damaged, replace it promptly—leaving it will accelerate wear and can lead to a WOF/RWC issue in NZ/AU.

Replacement on a D22 2WD is straightforward for a competent DIYer: safely lift, remove the wheel, mark toe settings, disconnect the outer tie rod end, slide off the old boot and clamps, clean the rack bar, fit the new boot with fresh clamps, then reassemble. Even with careful marking, a wheel alignment is recommended afterwards. Choose quality OEM-equivalent boots and stainless clamps, cheap thin bellows can split early, especially with heat and UV.

There’s no real “maintenance” beyond regular inspection—every service or 10,000 km is a good rule of thumb. For utes doing beach launches or farm work, check more often. Keep an eye on any power-steering fluid loss, fluid inside a boot usually points to an internal rack seal issue rather than the boot itself.

Why some 1998 Navaras don’t have rack boots: the 4WD D22’s recirculating-ball steering uses a steering box and linkages rather than a rack bar, so it has no bellows boots to protect a rack. Those systems rely on different dust seals at joints, not rack boots.

• Technical sources referenced:
  • Nissan Navara/Frontier D22 Factory Service Manual, Steering (ST) section, 1997–2004.
  • Nissan FAST/ELIC parts catalogue for D22 steering gear components.
  • Gregory’s/Haynes repair literature covering D22 steering layouts.

Popular questions

How can someone tell if their 1998 Navara actually has rack boots?
If it’s a 2WD, it’s rack-and-pinion and will have concertina boots on each end of the steering rack. If it’s a 4WD, it will have a steering box, pitman arm and idler—no rack boots. A quick look behind the front crossmember will reveal either a long cylindrical rack with bellows (2WD) or a box with linkages (4WD).

How often should rack boots be replaced on a 1998 Navara?
They’re not a fixed-interval item, inspect at every service and replace when cracked, torn, loose or contaminated with fluid. In harsh Aussie or Kiwi conditions, expect 5–10 years out of quality boots, but beach work or lots of gravel can shorten that.

Is a wheel alignment needed after changing rack boots?
Yes, if the tie rod end is removed or disturbed, get an alignment. Even if measurements were marked, a quick alignment check is cheap insurance against tyre scrub and wandering.