Parts for your 1990 Mitsubishi Pajero-Rack boots

1990 Mitsubishi Pajero rack-boots — what’s actually fitted

Short answer: a 1990 Mitsubishi Pajero doesn’t use rack-boots. Technical references such as the Mitsubishi factory service manual for the first‑generation Pajero (L040/V10 series, late 1980s to 1991) and the Mitsubishi ASA electronic parts catalogue list a recirculating‑ball steering box with a pitman arm, idler arm, centre/drag link and tie‑rod ends. There’s no rack‑and‑pinion assembly on this model, so there are no rack gaiters/bellows to service or replace. General workshop manuals covering these years (e.g., Gregory’s/Haynes for Pajero/Montero/Shogun up to the early 1990s) describe the same layout and likewise make no provision for rack boots.

Why no rack-boots? The Pajero of this era was engineered as a proper 4x4, and the recirculating‑ball steering box is chosen for strength and durability under off‑road loads, steering shocks and larger tyre packages. Rack‑and‑pinion systems use bellows (rack-boots) to protect the rack from dust and water, a steering box and linkages don’t need those bellows, so the part simply isn’t relevant on this vehicle.

If someone’s chasing “boots” for a 1990 Pajero steering service, they’re usually after dust boots on other joints. Keeping those in top nick is essential for safe, tight steering and for getting a clean WOF/rego inspection.

• Tie‑rod end dust boots: Replace if split, perished or weeping grease.
• Upper/lower ball joint boots: Check for cracks and contamination.
• Idler arm bushes and seals: Look for play and torn dust seals.
• Pitman arm and centre/drag link joints: Check for free play and damaged covers.
• Power steering box and hoses: Inspect for leaks at the input/output shaft seals and banjo/flare fittings.

Servicing tips: clean the joints before inspection so cracks are obvious, if a boot is torn, replace the joint if the pin is loose or the grease is gritty. Use quality replacement boots compatible with mineral grease and high articulation. After any steering work, get a proper wheel alignment. If the steering feels vague or you’re seeing uneven tyre wear, it’s worth checking the idler arm for slop—it’s a common wear point on these Pajeros.

FAQs

Does a 1990 Mitsubishi Pajero have rack-boots?
No. It uses a recirculating‑ball steering box and linkage, not rack‑and‑pinion, so there are no rack gaiters/bellows to replace. Focus inspections on tie‑rod end boots, ball joint boots, the idler arm and the steering box seals instead.

What “boots” should be checked on a 1990 Pajero’s steering?
Look at the tie‑rod end dust boots and the upper/lower ball joint boots, plus the idler arm dust seals. Any split or loose boot can let in grit, which quickly wears the joint. Replace damaged boots promptly and re‑grease where applicable.

Can a 1990 Pajero be converted to rack‑and‑pinion?
It’s not a bolt‑in job and rarely worthwhile. Conversions require custom fabrication and certification to stay road‑legal. The factory steering box is robust and better suited to off‑road loads when kept in good condition.