Parts for your 1988 Mitsubishi Pajero-Universal joints

1988 Mitsubishi Pajero universal joints

Universal joints are absolutely relevant to the 1988 Mitsubishi Pajero. The Mitsubishi Factory Service Manual for first‑generation Pajero/Montero (1980s–early 1990s) details universal joints on the front and rear propeller shafts in Group 22 – Propeller Shaft, including inspection, lubrication and replacement procedures. Australian workshop manuals such as Gregory’s and Haynes for 1983–1991 Pajero models likewise specify U‑joints with external circlips and greasing points, and the Mitsubishi ASA parts catalogue lists propeller shaft universal joints for these driveline assemblies. So yes—this model is fitted with U‑joints from factory.

On a 1988 Pajero, the universal joints (often called U‑joints or unis) sit at each end of the rear prop shaft, and on the front prop shaft between the transfer case and front diff. Their job is to let the shafts transmit torque while running at changing angles—exactly what a 4WD sees with suspension travel and load. When they’re healthy, they keep the driveline smooth and quiet, when they’re tired, they’ll announce themselves with a clunk on take‑off, a chirp at low speed, or a buzz/vibration at highway pace.

Servicing is straightforward and worth doing. Most Pajero unis of this era are greasable. A quick hit with quality lithium‑complex or moly chassis grease every 10,000–15,000 km—or at each engine oil change—goes a long way. If it’s been for a beach run or creek crossing, give the nipples another pump or two to flush moisture. During a service, check for red dust around the caps (dry needles), any play in the joint, or a stiff spot when you articulate the shaft by hand.

If replacement’s on the cards, mark the shaft and flanges so it goes back in phase and in the same orientation. Remove the circlips, press the old caps out (a bench vice and proper sockets work fine), clean the yoke lands, and install the new joint carefully so you don’t drop needle rollers. Fit new clips, confirm the joint moves freely without bind, and refit the shaft, tightening flange bolts to the factory spec listed in the workshop manual. After installation, a short road test and recheck for any seepage or movement is smart. With quality parts and regular grease, Pajero unis comfortably handle Aussie and Kiwi touring, corrugations and towing without drama.

• Grease intervals: 10,000–15,000 km, after water crossings or heavy off‑road use.
• Watch for clunks, chirps, vibration under load, or grease leakage at caps.
• Always maintain driveshaft phasing and balance marks during R&,R.

FAQ: How often should the universal joints on a 1988 Pajero be greased?

For greasable originals, every 10,000–15,000 km suits typical road use. If it’s doing regular off‑road work, beach driving, or water crossings, grease them sooner—straight after the trip is best. Use a quality chassis grease and pump until fresh grease just appears past the seals.

FAQ: What are the symptoms of worn U‑joints on a 1988 Pajero?

Common signs include a clunk when selecting Drive or taking off, a chirping noise that speeds up with vehicle speed, or a vibration at highway pace that worsens under load. Visible red dust around the caps, missing circlips, or any looseness when you twist the shaft by hand also point to a failing uni.

FAQ: Can it be driven with a noisy or vibrating U‑joint?

It’s risky. A failing U‑joint can let go and damage the tailshaft, exhaust, or underbody—and potentially leave the vehicle stranded. If it’s noisy or vibrating, reduce driving and sort it promptly. Towing or gentle local trips to a workshop are safer than long‑distance use.