Raptor 4x4 Reinforced Front Radius Arms – Toyota Land Cruiser 70 KZJ/LJ, Square Lamp

Once a lift goes on, the front of a Land Cruiser starts behaving oddly: the steering goes light around centre, the truck wanders on the straight and pulls off line under braking. The springs are not to blame – the caster angle has moved, and factory radius arms cannot bring it back.

This pair of reinforced arms deals with both issues at once. It restores correct caster on a lifted suspension and replaces the factory arms with a special-steel construction 15 mm thick. Eccentric bushings leave room for adjustment when the geometry is set.

Key benefits

• Caster correction for raised suspension – you get back the straight-line stability and self-centring steering that a lift takes away.
• Special steel 15 mm thick – a distinctly heavier section than the production arm, which counts the moment an arm catches a rock or a root.
• Eccentric bushings – a real adjustment range during alignment instead of one fixed factory value.
• Sold as a pair, so both sides of the axle get identical, fresh geometry.
• Choice of black paint or yellow zinc plating – these parts live in mud and road salt, so the coating is not a cosmetic detail.

What is in the box

• A pair of reinforced front radius arms (left and right)
• Eccentric bushings

Technical data

• Material: special steel
• Material thickness: 15 mm
• Function: reinforcement and caster angle correction for lifted suspension
• Bushings: eccentric
• Finish: black paint or yellow zinc plating
• Weight per pair: 24 kg
• Application: Toyota Land Cruiser KZJ / LJ 70 with square headlights
• Manufacturer catalogue code: 15131
• Manufacturer: Raptor 4x4 – Saglietti S.r.l., Italy

Who it is for. Any square-lamp KZJ/LJ 70 running a lift where on-road manners have gone backwards since the rebuild. Radius arms are also a sound investment on a truck used in hard terrain – the factory arms are first in line to take a hit and bend.

Fitting notes

This set belongs to the square-lamp body; Raptor 4x4 lists a separate part number (15132) for the round-lamp version. A front-axle alignment after fitting is not optional – without it the caster correction will not deliver and the toe setting will be whatever it happens to be. The distributor offers Raptor Joints bushings as a paid option (345 PLN surcharge). Our Szekla4x4 workshop carries out this work together with the alignment.

Why buy these arms

• One component fixes two things at once: strength and post-lift geometry.
• 15 mm of special steel is a concrete, verifiable figure rather than a claim of being "reinforced".
• Eccentric bushings keep adjustment in hand if you change lift height later.

Building a +2" lift and wondering whether radius arms are actually necessary? Message us and we will check it against your suspension configuration.

Frequently Asked Questions

Is the price for a pair or a single arm?

A pair. The manufacturer sells this part number as a set of two arms, left and right.

Why do I need caster-correction arms?

Lifting the suspension changes the caster angle, which degrades straight-line stability and steering self-centring. These arms are designed to correct caster on raised setups.

What are they made of?

Special steel with a material thickness of 15 mm. Available finished in black paint or yellow zinc plating.

Do they fit the round-lamp version?

No. Code 15131 is assigned to the square-lamp body – the round-lamp version uses code 15132.

Can I order different bushings?

Yes, the distributor lists an option to fit Raptor Joints bushings for a 345 PLN surcharge.