A Planted Technology seat bracket for the Pontiac Grand Am, 1999 to 2005. Part number SB147.
It shares a platform with the Oldsmobile Alero, which takes SB148. If you are hunting mechanical parts, that is where to look.
Never sold here
So a UK car is an import, and there are not many. The Grand Am was a high volume American compact that nobody was sentimental about even when it was new, which is precisely why the surviving ones get built rather than preserved.
Which is a perfectly good reason to fit a seat
A cheap car nobody minds damaging is the right car to learn in, whether that is track days or drift practice. The standard Grand Am seat is soft and offers nothing to brace against, and it is the first thing that stops being adequate.
Tell us your budget as well as the car and we will point you at something sensible rather than the most expensive shell we stock. On a build like this the money is better spent on tyres.
Practical
Twenty five years old. Get the carpet up and check the metal.
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 Pontiac Grand Am. 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.