Tein Street Basis Z Coil Overs – Lexus GS300/Toyota Aristo

Description

The Street Basis GS300 kit is a Tein Street Basis Z height-adjustable coilover kit for the Lexus GS300 and Toyota Aristo, with twin-tube dampers and fixed damping.

Key features of the Street Basis GS300

• Product line: Tein Street Basis Z coilover kit
• Tein part number: GST76-81SS2
• Damping force adjustment: none (fixed damping)
• Damper: twin-tube, sealed structure (not rebuildable)
• Ride height adjustment: thread type, by moving the lower spring seat (not full-length adjustable)
• Upper mounts: uses the car’s original upper mounts, which are not included
• Springs: Tein no-sag springs, cold formed from SAE9254 steel (minimum tensile strength 200 kgf/mm²), powder coated
• Shell case: TEIN-green powder coat, 2-layer 1-bake method over a blasted surface
• ZTP coating on the ride height adjustment thread
• Dust boots to guard the piston rod (some vehicles re-use the OE dust boots)
• High-performance damper oil
• Spring rates: front 10.0 kgf/mm, rear 9.0 kgf/mm
• Special order item
• SKU: GST76-81SS2

Specifications

How it works

The Street Basis GS300 kit is from the Tein Street Basis Z range. The top of each shell pipe is narrowed, oil and gas are injected, and the unit is sealed by crimping the metal, which shortens production and keeps the price down. The twin-tube design gives a longer stroke with a smaller repulsive force than a regular mono-tube damper, so the car rides gaps and bumps steadily, with a smooth ride at low speed and stability at high speed.

On the Street Basis GS300 kit, ride height is set by moving the lower spring seat up or down on the threaded body, a simple layout that is easy to use. Damping is fixed, with the valving matched to the supplied springs. The kit uses the original upper mounts from the car, so check they are in good condition before fitting.

Built to last

The Street Basis GS300 shell case is finished in TEIN-green powder coat, applied with a patented 2-layer, 1-bake method over a blasted surface, and the ride height thread has ZTP coating against gravel, debris and rust. The damper oil holds a stable viscosity across a broad temperature range and resists foaming, heat and deterioration over time.

Fitment

The Street Basis GS300 kit fits the Lexus GS300 (JZS160) from 1998 to 2005 and the Toyota Aristo (JZS160 and JZS161) from 1997 to 2004, rear-wheel drive. The same part number also fits the V8 Lexus GS400 and GS430 (UZS160). Check the Fitments tab for your exact model before ordering the Street Basis GS300 kit.

Setting up

Set the Street Basis GS300 ride height within the recommended range shown in the table, keep it even from side to side, then have the wheel alignment checked. Going beyond the recommended range may cause clearance or interference issues and may void the product warranty.

The Street Basis GS300 setting reduces body roll and the tall, unstable feel and vague steering of the standard car, with the focus on ride comfort for everyday driving and better stability.

The Street Basis GS300 kit is a special order item, so contact us to confirm the details before ordering.

If you are asking us about this item, quote the SKU GST76-81SS2 so we can match the exact part.

Related Tein products

See also: Tein Street Basis Z Coil Overs – Lexus IS220, Toyota Altezza / Lexus IS200 Coil Overs – Tein Street Basis Z, Toyota Altezza / Lexus IS200 Coil Overs – Tein Street Advance Z.

Confirm exact vehicles on the Fitments tab before ordering.