Parts for your 1989 Mitsubishi Pajero-Centre bearing

1989 Mitsubishi Pajero centre-bearing: what it is, and whether yours has one

Technical references including the Mitsubishi Pajero/Montero Service Manual (1988–1991, Propeller Shaft section), the Mitsubishi ASA electronic parts catalogue, and popular workshop guides (Gregory’s/Haynes covering 1983–1991) show that most long‑wheelbase (LWB) 1989 Pajeros run a two‑piece rear propeller shaft with a centre support bearing (centre‑bearing). Short‑wheelbase (SWB) models typically use a single‑piece shaft and therefore don’t have a centre‑bearing. A quick under‑body look will confirm it: a two‑piece shaft with a bracket and rubber‑mounted bearing midway means it’s fitted.

On a 1989 Pajero that runs a centre‑bearing, the part’s job is straightforward: it carries the middle of the two‑piece prop shaft, keeping driveline angles tidy, damping vibration, and cutting down on shudder during take‑off. With the torque of the old 4D56 diesel or V6 on board, plus the longer wheelbase, that added support helps the universal joints live longer and makes highway running much smoother.

As the kilometres rack up, the rubber cushion around the bearing can perish and the bearing itself can get noisy. Common tells include a low‑speed shudder pulling away, a droning or humming between about 40–70 km/h, and a clunk when shifting from drive to reverse. A quick inspection on a hoist often shows cracking rubber, off‑centre alignment, or play at the bearing. If those signs are there, it’s time to sort it before it takes out the U‑joints or starts shaking the tailshaft enough to worry the gearbox mount.

• Typical symptoms: take‑off shudder, mid‑speed drone, driveline clunk, cracked rubber support, visible play.
• Contributing factors: age, oil/grease soaking the rubber, lifted suspension altering driveline angles, worn engine/gearbox or diff mounts.

Replacement is straightforward for a competent mechanic: mark the shaft flanges to preserve phasing and balance, drop the two‑piece prop, press off the old bearing, and fit the new bearing and support. Renew the locknuts/bolts, centre the carrier evenly in its slotted mount, and torque to the workshop spec. While there, it’s smart to check U‑joints for play, re‑grease serviceable joints, and inspect mounts and crossmember bushes. Genuine and quality aftermarket bearings are both available, many are sealed and not serviceable, so ongoing “maintenance” is really about periodic inspection at each service and prompt replacement when wear shows. Done right, the Pajero’s drivetrain stays smooth, and those classic touring manners stick around for the long haul.

FAQs

Does a short‑wheelbase 1989 Pajero have a centre‑bearing?
Typically no. SWB models usually run a single‑piece rear prop shaft, so there’s no centre support bearing. If unsure, look under the vehicle: if there’s only one continuous shaft from transfer case to diff, there won’t be a centre‑bearing.

How long should a centre‑bearing last on a 1989 Pajero?
Many last well over 150,000–300,000 km, but age, oil contamination, harsh off‑road use, and altered ride height can shorten life. Regular inspection for rubber cracking and bearing play helps catch issues early.

Can the Pajero’s centre‑bearing be greased?
The centre‑bearing itself is usually a sealed unit and not greasable. Service focuses on inspection and replacement when worn. Some Pajero U‑joints have grease nipples—keep those serviced to reduce strain on the centre‑bearing.