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Vertical (Lambo) Door Conversion Kit for the 1998-2004 Lexus GS400
This vertical (Lambo) door conversion kit replaces the factory hinge system on the 1998-2004 Lexus GS400 so each front door opens outward and then lifts vertically. Vertical Doors, Inc. builds the VDCLEXGS4009804 as a direct bolt-on assembly that mounts to the vehicle's factory bolt pattern, and the vehicle keeps its original doors and outer skins. Every kit is prototyped on the actual vehicle before release, and it ships with a vehicle-specific instruction manual and free technical support.
Key Features
- Direct bolt-on design that mounts to the Lexus factory bolt pattern
- Hinges machined from 3/8 and 1/2 inch domestic hardened steel
- Two gas shocks calibrated to support the door through its travel
- Patented and manufactured in the United States from domestic steel
- Reversible installation, so the factory hinge setup can be restored
- 6-12 page vehicle-specific instruction manual plus free technical support
- The VDCLEXGS4009804 is engineered for this application rather than adapted from a universal hinge
Fitment
| Make | Model | Years | Submodel | Part Number |
|---|---|---|---|---|
| Lexus | GS400 | 1998-2004 | All trim levels | VDCLEXGS4009804 |
Specifications
| Detail | Value |
|---|---|
| Manufacturer | Vertical Doors, Inc. |
| Manufacturer Part Number | VDCLEXGS4009804 |
| Kit Type | Vertical (Lambo) Door Conversion Kit |
| Doors Covered | Front two doors |
| Door Motion | Opens outward and then lifts vertically |
| Hinge Material | 3/8 and 1/2 inch domestic hardened steel |
| Hinges Included | 2 (one driver side, one passenger side) |
| Gas Shocks Included | 2 |
| Mounting | Direct bolt-on to the factory bolt pattern |
| Reversible | Yes |
| Country of Manufacture | United States |
| Patent | Patented in the United States |
| Instruction Manual | 6-12 page vehicle-specific manual included |
| Technical Support | Free, Monday to Friday 8:30 AM to 4:00 PM Pacific |
What's Included
- Two Vertical Doors, Inc. Lambo door hinges, one for each side
- Two gas shocks
- All mounting hardware for the listed application
- Vehicle-specific installation instructions for the VDCLEXGS4009804
- Free technical support from Vertical Doors, Inc.
About Vertical Doors
Vertical Doors, Inc. has been building bolt-on vertical door conversions in the United States since the early 2000s and operates from 542 3rd St, Lake Elsinore, CA 92530. The company machines its hinges from domestic hardened steel, holds United States patents on its designs, and prototypes each kit on the actual vehicle so the hardware lines up with the factory bolt pattern. Every kit ships with a vehicle-specific manual, and the company's technical support line is available at no charge to help through the installation.
Related Parts
- 1998-2004 Lexus GS300 Vertical (Lambo) Door Conversion Kit
- 1998-2005 Lexus IS300 Coupe Vertical (Lambo) Door Conversion Kit
- 2004-2009 Lexus RX 400H Vertical (Lambo) Door Conversion Kit
- 1991-2000 Lexus SC400 Vertical (Lambo) Door Conversion Kit
FAQ
What is the VDCLEXGS4009804?
It is the Vertical Doors, Inc. vertical (Lambo) door conversion kit built for the 1998-2004 Lexus GS400. The kit swaps the factory door hinges for hardened steel vertical hinges and gas shocks so the doors open outward and then lift vertically.
Will this kit fit my Lexus GS400?
It is the verified application for the 1998-2004 model years, and Vertical Doors, Inc. lists it as fitting the trim levels in that range. Confirm your model year and body style against the fitment table above before ordering.
Does the vehicle keep its original doors?
Yes. The conversion replaces the factory hinge system only. The original doors, glass and outer skins stay on the vehicle.
Is welding required to install this kit?
No. Vertical Doors, Inc. builds this as a direct bolt-on kit that mounts to the factory bolt pattern, and the company specifically cautions that weld-on kits can damage a vehicle.
Can the installation be reversed?
Yes. Vertical Doors, Inc. lists this kit as reversible, so the factory hinge arrangement can be put back if the vehicle is returned to stock.
How far do the doors open?
Outward travel before the lift is specific to this application, and Vertical Doors, Inc. does not publish a single figure that covers every vehicle. The exact geometry for this kit is documented in the instruction manual that ships in the box.
Are the gas shocks included, or bought separately?
Two gas shocks are included in the kit and are matched to the door weight for this application. No separate shock purchase is needed.
Which doors does this kit cover?
Front two doors. Kits are built for that pair unless the listing states otherwise, and the rear doors keep their factory hinges.
What documentation and support come with the kit?
A 6-12 page vehicle-specific instruction manual ships in the box, and Vertical Doors, Inc. provides free technical support Monday through Friday, 8:30 AM to 4:00 PM Pacific.
Should a professional install this kit?
The kit bolts to factory mounting points, but the doors are heavy and the hinges need proper support and alignment during the swap. A shop with body and door experience is recommended, and the doors should be aligned and function-tested before the vehicle is driven.
Does the hinge need any maintenance?
The hinge pivots should be greased periodically. Follow the interval printed in the instruction manual that came with the kit, and keep the hardware checked for tightness.
Install Instructions
- Read the instruction manual supplied with the VDCLEXGS4009804 completely before starting, and lay out the hardware so each side is identified.
- Support the door on a padded stand or a second set of hands. The door must be held securely before any factory hinge fastener is loosened.
- Disconnect the vehicle battery, then carefully route or disconnect the door wiring harness according to the manual so nothing is stretched or pinched during the swap.
- Remove the factory hinges from the door and body, keeping the original hardware in case the installation is reversed later.
- Bolt the Vertical Doors hinge assembly to the factory bolt pattern on the correct side, starting all fasteners by hand before tightening any of them.
- Rehang the door on the new hinge and check the panel gaps against the fender and rocker before the fasteners are fully tightened.
- Install the gas shock on that side, then repeat the process on the opposite door.
- Adjust the hinge and door alignment until the gaps are even and the door closes and latches without binding.
- Cycle each door slowly through its full travel several times, confirm the shocks hold the door and that no wiring is under tension, then torque the fasteners to the values in the manual.
- Grease the hinge pivots and recheck all fasteners after the first few days of use.
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