Lexus GX Lift Hub

The GX is the Land Cruiser Prado in a suit, and its lift market runs on one acronym: KDSS, Toyota’s hydraulic sway-bar disconnect system, fitted across much of the GX parc. Every kit on this hub splits by it. The three generations are the GX 470 (2003–2009) — rear air suspension on all trims — the GX 460 (2010–2023), and the GX 550 (2024+), whose Overtrail and Overtrail+ grades are the factory off-road trims (E-KDSS, 33-inch tires, and a Lexus-stated 1-inch lift on the 2025 Overtrail grades).

We have not hands-on tested kits for this platform. Everything published here is tied to a cited source — manufacturer fitment pages, checked 2026-11-09 — and our method is explained in how we test and verify. The GX shares its bones with the 4Runner — but their kit catalogues are not interchangeable, and this hub never transfers a 4Runner fitment to a GX.

Check first: the splits that decide everything

• KDSS or not — and the SKU follows. Ironman sells its GX kits as separate KDSS and non-KDSS versions; ICON documents KDSS compatibility in its fitment notes. Ordering the wrong version is the platform’s classic mistake.
• Rear air suspension (GX 470 all trims; GX 460 on air-equipped trims). ICON’s GX460 system needs a rear air conversion kit (their #56110) on air-ride trucks; Ironman offers a rear-airbag-delete option. Name your rear suspension before choosing.
• Overtrail is its own fitment. ICON’s GX550 system explicitly will NOT fit Overtrail/Overtrail+; Westcott sells a dedicated Overtrail version of its collar kit; TORQ’s Stage 2 states Overtrail compatibility. Three makers, three different answers — check yours.

The verified ladder

Six kits: Ironman 4x4 Foam Cell Pro Stage 1 systems for the KDSS GX470 and GX460 ($1,963.00 each); ICON Stage 1 systems for the GX460 ($2,584.25, stating a 33x11.50) and GX550 ($2,574.44, stating 34x11.50); and for the GX550, Westcott’s preload collar kit (from $463.45, stating a 35-inch max) and TORQ Engineering’s Stage 2 (stating 35s with possible minor trimming). The full list is in our Lexus GX lift kits guide.

Your workflow on this platform

1. Name your generation: 470, 460 or 550 — then your KDSS and rear-suspension configuration.
2. On a GX550, name the trim: Overtrail changes the catalogue.
3. Decide full system vs collar/spacer by budget and how much of the factory ride you are keeping.
4. Convert your tire goal with the tire size calculator, sanity-check it against the tire size and lift height guide, and price the whole job with how much does it cost to lift a truck.

Sources for this hub (checked 2026-11-09): the manufacturers’ product pages cited per kit in the GX lift kits guide — Ironman 4x4 (TOY055KP1-KDSS, TOY065KP1-KDSS), ICON Vehicle Dynamics (K53181, K53351), Westcott Designs and TORQ Engineering (GX550 kits); Lexus’s own GX550 Overtrail material for the factory-trim facts.