A Planted Technology seat bracket for the Lexus GX470, first generation on the J120 chassis, 2003 to 2009. Part number SB309.
The GX470 is the Land Cruiser Prado with a Lexus interior. If you have an imported Prado of those years, send us the registration and we will check the fitment.
Why it has an off road following despite the badge
Body on frame, a proper full time four wheel drive system with a locking centre differential, and a low range transfer case. Lexus sold it as a luxury vehicle and a great many buyers never took it off tarmac, which is precisely why good used ones are now bought by people who will.
The Kinetic Dynamic Suspension System on some cars is worth knowing about, because it complicates any suspension work later.
Buy for the distance
A hard racing shell is the wrong tool for several days of corrugated gravel. Ask us about the more heavily padded options and about neoprene trim if it sees dust and water.
Airbags and powered adjustment. Tell us the specification.
Have you written anything about this exact product?
Yes, we have covered this exact product: Lexus Planted Technology Frames Updated For 2026, and Customer Car: Subaru Impreza With Corbeau RRS Seats and Planted Technology Brackets. That is first-hand coverage from our own builds and showroom, not brochure copy.
Will this fit my car?
This frame is made for the Lexus GX470 [1st Generation / J120 Chassis] (2003-2009). Chassis code and years matter more than the badge, as floor pans change between generations, so if your car sits near a changeover year, send us the registration and we will confirm before you order.
Which seats does it take?
Check the bolt pattern in the specification against your seat. The Compatible seats tab above lists what bolts straight on. If your seat is not listed, tell us what you run and we will confirm the fit.
Do I keep fore-and-aft adjustment?
Only with a sliding runner between the frame and the seat, which is a separate part on Planted frames. If more than one person drives the car, budget for the runner. Our guide to sliding runners explains the options and widths.
Is this for the driver or passenger side?
Both sides are available on this listing, pick driver or passenger side at the point of order (sides listed are for right-hand-drive cars). Left-hand-drive car? Ask us, as the sides swap over and availability varies by model.