Toyota Land Cruiser 78 Series (1999–2026) Polymann Bushing Upgrade — Full Solid Axle Restoration for a Legend Built to Last

The Toyota Land Cruiser 78 Series — produced continuously from 1999 to 2026 — is one of the last vehicles in the world still built with solid axles at both the front and the rear. Where almost every modern SUV and pickup has moved to independent front suspension for highway comfort, the 78 Series retains live axles front and rear by design. This is not a compromise — it is a deliberate engineering choice for maximum articulation off-road, maximum ground clearance, and the ability to be repaired in remote locations with basic tools. The Land Cruiser 78 is used by mining companies, aid organisations, plantation operators and serious overlanders precisely because it is built to work hard, be repaired simply, and outlast everything around it.

PPPB 35821 — Front Leading Arm (Big) Bushing Kit: The LC78's front solid axle is located fore-aft by a pair of leading arms — a larger lower arm and a smaller upper arm on each side. The big leading arm is the primary structural link, carrying the majority of the braking and acceleration forces transmitted between the front axle and the chassis. Its bushings allow the arm to pivot as the axle moves through its travel. Under the demands of regular off-road use — deep ruts, river crossings, hard braking while loaded — these bushings take considerable punishment. Worn big leading arm bushings cause front-end clunking under braking, imprecise axle tracking, and steering vagueness.

PPPB 35822 — Front Leading Arm (Small) Bushing Kit: The small leading arm works alongside the big arm to precisely control the front axle's position. It is shorter and positioned higher, and its primary role is to prevent the axle from rotating fore-aft under braking and acceleration forces. Worn small leading arm bushings allow the axle to rotate slightly under load — this manifests as brake dive that feels excessive, a subtle hopping sensation under hard acceleration, and an imprecision in the front suspension that experienced LC78 drivers will notice immediately.

PPPB 35895 — Front Panhard Rod Bushing Kit: The front panhard rod runs laterally from the chassis to the front axle, preventing the axle from moving side to side. It is the component that keeps the front axle centred under the vehicle — critical on a solid axle vehicle where lateral axle movement directly affects steering geometry. The panhard rod has a bushing at each end. When these wear, the front axle develops lateral play — the steering feels vague and inconsistent, and the front end may wander on corrugated roads where lateral forces on the axle vary rapidly.

PPPB 35902 — Front Leading Arm (Big) OFFSET Bushing Kit (Optional): For LC78 owners who have fitted a suspension lift, the standard leading arm geometry places the front axle slightly forward of its intended position at the new ride height. An offset bushing corrects this by shifting the axle rearward to restore correct caster geometry after a lift. PPPB 35902 is Polymann's offset option for the front big leading arm — recommended for LC78 vehicles with a suspension lift where correct front geometry restoration is desired.

PPPB 36217 — Front Sway Bar Link Outer Bushing Kit (15mm) / PPPB 36216 — Front Stabilizer Bar Bushing Kit (26mm): The front anti-roll bar reduces body roll during cornering and keeps both front wheels in better contact with the ground during articulation. The bar is mounted to the chassis through two clamp bushings (26mm bore — PPPB 36216), and connects to the suspension through drop links with outer bushings at each end (15mm — PPPB 36217). Both sets of bushings wear over time and off-road use, resulting in increased body roll, knocking from the sway bar during wheel articulation, and a feeling of looseness from the front suspension on uneven terrain.

PPPB 35821 / PPPB 35822 — Rear Leading Arm (Big / Small) Bushing Kits: The LC78's rear solid axle uses the same leading arm configuration as the front — a big lower arm and a small upper arm on each side, locating the axle fore-aft. The rear leading arms take the longitudinal loads from the rear axle under load carrying, braking and acceleration. A heavily loaded LC78 — carrying passengers in the rear of a troop carrier body, or pulling a trailer — puts significant stress on these bushings. Worn rear leading arm bushings cause rear-end clunking under braking and acceleration, imprecise axle tracking, and can contribute to rear axle tramping under hard acceleration when loaded.

PPPB 36088 — Rear Panhard Rod Bushing Kit: Like the front, the rear axle is held laterally by a panhard rod. On the LC78, the rear panhard rod is especially important because the rear axle carries the full weight of the payload — and lateral axle movement under a heavy load can feel very noticeable. Worn rear panhard rod bushings allow the rear axle to shift sideways under cornering and load — the rear of the truck feels loose during lane changes, and on heavily corrugated roads the rear axle can hop sideways unpredictably.

PPPB 36219 — Rear Sway Bar Link Outer Bushing Kit / PPPB 36218 — Rear Stabilizer Bar Bushing Kit (23mm): The rear anti-roll bar reduces body roll during cornering and keeps the rear axle balanced under load. The bar is mounted to the chassis through clamp bushings (23mm — PPPB 36218) and connects to the axle via drop links with outer bushings (PPPB 36219). As with the front, both sets of rear sway bar bushings wear with use — the result is increased body roll at the rear, knocking from the rear sway bar during off-road articulation, and a looseness in the rear suspension's lateral behaviour.

The Land Cruiser 78 Series is built to last decades. Many of these vehicles cover hundreds of thousands of kilometres in the most demanding conditions imaginable — and they keep going. The bushing system is the part of the suspension that needs periodic attention to maintain this longevity. Replacing all bushing positions — front and rear leading arms, panhard rods, and sway bar components — is not a luxury: it restores the precise axle control and predictable handling that the LC78 was designed with, and keeps the rest of the suspension components working correctly rather than carrying additional stress from worn bushings.

4M Carcare is an authorised Polymann installer in Bandar Sri Damansara. We stock the complete range of Polymann bushing kits for the Toyota Land Cruiser 78 Series, including the offset leading arm option for lifted vehicles. If your LC78 has a suspension lift fitted, let us know when you WhatsApp — we will advise whether the offset option is appropriate for your setup. A four-wheel alignment check is recommended after any suspension bushing work to verify axle geometry.