Parts for your 1986 Mitsubishi Pajero-Driveshafts

1986 Mitsubishi Pajero Driveshafts — What They Do and How to Look After Them

Driveshafts are absolutely relevant and fitted to the 1986 Mitsubishi Pajero. Factory literature such as the Mitsubishi Pajero/Montero Workshop Manual (1982–1991, sections covering Propeller Shaft, Front Axle and Differential) and aftermarket guides like the Haynes Mitsubishi Montero/Pajero 1983–1996 manual and Gregory’s Pajero manual all document the vehicle’s front and rear propeller shafts, universal joints, and front CV half‑shafts. Being a body‑on‑frame 4WD with a transfer case, the ’86 Pajero relies on these shafts to move torque from gearbox/transfer case to the diffs and out to the wheels.

On this model, there’s a rear propeller shaft to the rear differential and a front prop shaft to the front differential. With independent front suspension, the front diff then drives the wheels via CV half‑shafts. The universal joints (U‑joints) and slip joints allow the shafts to change angle and length as the suspension travels, while still turning smoothly. Without them, there’s no go—on or off the road.

Good servicing habits keep Pajero driveshafts happy for ages. During regular services (every 10,000–15,000 kilometres or before a big trip), it’s worth:

• Greasing any serviceable U‑joints and the slip yoke. After water crossings, mud, or beach runs, give them another grease to push out moisture.
• Inspecting for play, red rust dust around U‑joints, torn CV boots, flung grease, or dents in the tubes. Any of these can lead to vibration or failure.
• Checking flange bolts for correct tightness and reusing factory matchmarks. If you remove a shaft, mark the flanges so it goes back in the same orientation to protect balance.
• Listening for clunks on take‑off, shudder under load, or a buzz at highway speed—classic signs of worn U‑joints, a tired centre bearing (on two‑piece rear shafts), or imbalance.

Replacement is straightforward for a competent tech: matchmark, drop the shaft, press out tired U‑joints, fit quality replacements, and refit with the yokes correctly phased. On long‑wheelbase models, inspect the centre support bearing and rubber mount and replace if perished. Always refer to a proper workshop manual for torque specs and procedures, and use new hardware where specified. If a CV boot is split, fix it pronto—fresh boots and grease can save an otherwise good joint. Sorted driveshafts mean fewer vibrations, better longevity in the diffs and transfer case, and a Pajero that feels tight and ready for the next mission.

Q: What are the common signs of worn driveshafts or U‑joints on a 1986 Pajero?

A: Look for a clunk on take‑off or when shifting from drive to coast, vibration that rises with road speed, chirping or squeaking at low speed, visible rust dust near U‑joints, or a shudder under load. Up front, split CV boots and flung grease point to CV trouble. Any of these warrant inspection before something lets go.

Q: How often should the driveshafts be serviced on an ’86 Pajero?

A: At normal service intervals (about every 10,000–15,000 kilometres), grease any serviceable U‑joints and the slip yoke, check flange bolts, and inspect boots and bearings. After deep water, mud, or beach work, give them extra attention—clean, re‑grease, and recheck, as grit and salt are hard on joints.

Q: Can it be driven with a front prop shaft removed to diagnose a vibration?

A: On part‑time 4WD models running in 2H, some owners temporarily remove the front prop shaft for diagnosis only. It’s not a fix and shouldn’t be a long‑term setup. Always follow workshop guidance, keep matchmarks, and restore the driveline to standard once testing is done.