Parts for your 1998 Nissan Navara-Centre bearing

1998 Nissan Navara centre-bearing: what it is, if you’ve got one, and how to look after it

Based on factory and aftermarket technical references, a centre-bearing is relevant to the 1998 Nissan Navara (D22) and is fitted to most long‑wheelbase models with a two‑piece tailshaft (commonly dual‑cab and many cab‑chassis, 2WD and 4WD). Some short‑wheelbase single‑cab 2WD variants run a single‑piece tailshaft and therefore do not use a centre-bearing. This setup is described in the Nissan Navara/Frontier D22 Series Service Manual (Driveline/Propeller Shaft section), reflected in listings from major bearing manufacturers for D22 centre support bearings (1997–2004), and noted in workshop guides such as Gregory’s/Nicholson manuals and the Nissan FAST parts catalogue for D22 driveline variants.

• Nissan D22 Service Manual: two‑piece propeller shaft with centre support bearing on LWB models
• Aftermarket catalogues (SKF/NTN/NSK, Australian distributors): centre support bearing for D22 1997–2004 except certain SWB one‑piece shafts
• Gregory’s/Nicholson workshop manuals and Nissan FAST EPC for D22 driveline variants

For 1998 Navaras fitted with a centre-bearing, its job is to support the two‑piece tailshaft mid‑span, keeping everything running true at highway speeds and under load. On a long‑wheelbase ute, a single long shaft can whip and vibrate, splitting it into two sections with a centre support bearing limits that, helps maintain correct driveline angles, and keeps the ride smoother when the tray’s loaded or you’re towing.

The centre-bearing sits in a rubber isolator and bolts to a crossmember. Over time the rubber can crack or sag, and the bearing itself can rough up. Typical tells include a droning or rumbling that follows road speed, a shudder on take‑off, or a clunk as load comes on and off. Australian and New Zealand conditions—corrugations, towing the boat, farm tracks, or a lift kit changing tailshaft angles—speed up wear.

As part of routine servicing on a 1998 Navara with a two‑piece shaft, it’s smart to inspect the centre-bearing every 20,000–30,000 km. Look for perished rubber, off‑centre sag, metal‑to‑metal signs, or play when you support the shaft and gently load it up/down. While you’re there, check uni joints, slip yoke play, and tailshaft phasing marks. If the bearing is noisy or the rubber is split, replacement is the fix—there’s no practical re‑grease option.

When replacing, mark the shaft sections so they go back in phase, support the shaft properly, and follow factory torque specs from the D22 manual. It’s good practice to renew the mounting hardware and consider doing uni joints at the same time if they’re borderline. After install, a road test for vibrations on light throttle, cruise, and overrun helps confirm it’s spot on. If a vibration remains, check mount alignment and tailshaft balance. Using quality OEM‑equivalent bearings and correct refit procedures usually restores that smooth, no‑nonsense Navara driveline feel.

• Common symptoms:
  • Take‑off shudder and load‑related vibration
  • Speed‑dependent drone/rumble from mid‑car
  • Visible sag or cracked rubber at the support
• Service tips:
  • Inspect at regular service intervals, especially after suspension changes
  • Keep tailshaft phasing marks aligned on refit
  • Check uni joints and mounts at the same time

Popular questions about 1998 Nissan Navara centre-bearing

Does every 1998 Navara have a centre-bearing?

No. Most long‑wheelbase D22 models (like dual‑cab and many cab‑chassis) use a two‑piece tailshaft with a centre-bearing. Some short‑wheelbase single‑cab 2WD versions run a single‑piece tailshaft and won’t have one. A quick under‑car look will tell you—two separate shaft sections with a bracket in the middle means it’s fitted.

How long should a centre-bearing last on a D22?

Plenty see 150,000–250,000 km, but lifespan varies with load, road conditions, and suspension mods. Regular inspection helps, once the rubber perishes or the bearing rumbles, replacement is the sensible move before it starts shaking other driveline parts to bits.

Can a worn centre-bearing damage other parts?

Yes. Excess vibration can hammer uni joints, flog out the gearbox/transfer case mounts, and in bad cases lead to tailshaft imbalance or seal wear. Sorting the centre-bearing early is cheaper than chasing a chain of driveline issues later.