Parts for your 1999 Nissan Navara-Centre bearing

1999 Nissan Navara centre-bearing: what it does, and when it matters

Based on the Nissan Navara D22 Factory Service Manual (Propeller Shaft section), Gregory’s Service and Repair Manual for the D22, and Australasian driveline catalogues (e.g., Hardy Spicer), a centre-bearing is fitted to most 1999 Navara D22 models that use a two-piece propeller shaft — common on dual-cab and many 4x4 and long-wheelbase variants. Short-wheelbase 2WD single-cab models may run a single-piece shaft and therefore don’t use a centre-bearing. So for a typical 1999 D22 in Australia or New Zealand, the centre-bearing is relevant if the ute has a two-piece shaft, if it’s a one-piece shaft, there isn’t one to service.

On vehicles fitted with it, the centre-bearing (also called the propeller shaft centre support bearing) sits midway along the two-piece tailshaft. Its job is to support the shaft, keep driveline angles in check, and tame vibration under load. When it’s healthy, take-offs are smooth and there’s no shudder through the cab. When it’s tired, owners often notice a thump as they pull away, a droning or rumble at highway speeds, or a shiver under load around 60–80 km/h. You might also spot cracked rubber in the carrier or excessive fore–aft movement at the bearing mount.

Servicing is pretty straightforward: during routine services (say every 10,000–15,000 kilometres), give the centre-bearing area a quick visual once-over. Look for perished rubber, torn mounts, and any metal-on-metal contact. Spin the shaft by hand and listen for roughness. While you’re there, check universal joints for play and make sure the support bracket and fasteners are snug. Some D22 setups use shims at the mount, if the bearing has been changed, confirm the bracket height and driveline angles are still on the money to avoid fresh vibrations.

When replacement’s due, mark the tailshaft flanges and the phasing before removal so it all goes back in the same orientation — that keeps the balance right. Separate the two halves, press off the old bearing and carrier, and fit the new assembly with the correct preload and dust shields as required. Refit with threadlocker and torque to spec as per the factory manual. If the centre-bearing has failed because of age or contamination, it’s smart to assess the uni joints and slip yoke while the shaft’s out. Plenty of owners are happy to DIY with a press and some patience, but a driveline shop can balance the shaft and nail the alignment in one hit. That little bit of extra care saves chasing vibrations down the track.

• Technical references: Nissan Navara D22 Factory Service Manual (Propeller Shaft/Driveline section, 1997–2004), Gregory’s Nissan Navara D22 Service and Repair Manual, Australasian Hardy Spicer Driveline Catalogue, Nissan Electronic Parts Catalogue (D22) showing centre support bearing on two-piece shafts.

FAQs

Does every 1999 Navara have a centre-bearing?
Not all of them. Most dual-cab, many 4x4, and long-wheelbase D22s use a two-piece prop shaft with a centre-bearing. Some short-wheelbase 2WD single-cab utes run a single-piece shaft and don’t have one. A quick look under the vehicle will show a support bracket roughly mid-way down the tailshaft if it’s fitted.

What symptoms point to a failing centre-bearing on a D22?
Common signs include a thump on take-off, shudder under load or around 60–80 km/h, a droning noise at speed, or a visibly cracked rubber carrier. Do keep in mind that worn uni joints, engine/gearbox mounts, or incorrect driveline angles can mimic those symptoms, so a proper inspection is worthwhile.

How often should the centre-bearing be replaced?
There’s no fixed interval. Many last well over 150,000–300,000 kilometres, but life depends on load, terrain, and exposure to mud or salt. Best practice is to inspect it at each service and replace it when the rubber carrier is perished, the bearing feels rough, or there’s excess movement or vibration that checks back to the support.