These brackets are designed to bolt directly into the seat slide bracket mounting studs of all G body cars. They are made of .188 thick 5052-H32 aluminum for superior strength.
On our test car we reduced the weight of the car by 42 pounds by installing the Kirkey seats with our aluminum brackets. It would be even more if our test car had power seats.
These brackets have provisions to be bolted into the OEM studs (on the floor) in three different positions. Seats are mounted by bolting directly through the sides of these brackets using the factory nuts which retained the factory seats. Bolting the aluminum seats through the side bolsters and seat bracket is the most effective way to mount an aluminum Kirkey seat. This method places the seat to the bracket in shear, which is the strongest way to mount the aluminum Kirkey seats. We recommend using at least 3 quantity 5/16 bolts through each side of the brackets spread out as far as possible.
The design allows for more position adjustability than the factory seat slides allow. For example, the seat can be mounted further forward, rearward, lower, or higher than the factory seat.
For installation: place the brackets into the car. Bolt them down. Then place the seat into the bracket. Determine if the seat brackets need’s moved forward or rearward. Adjust if necessary. The seat can be moved all over, forward, rearward, up, down to get perfect positioning for the driver. We set stack 2x4 blocks of wood on the floor and then place the seat on top of them then have the driver get into the car. You can get the drivers hip joint at least 2” lower with these brackets than you can with the factory seats. Once that perfect position determined mark the location of the seat to the bracket. Remove everything. Then drill holes and bolt the seats to the brackets.
These brackets will fit the new 55 series seats. (The 41 series drag seat were discontinued & these brackets do still fit them).
New 55 series pro street drag seats
Smaller brackets will fit Kirkey part numbers:
55150 15" hip width aluminum pro street drag seats
55160 16" hip width aluminum pro street drag seats
The other brackets will fit part numbers:
55170 17" hip width aluminum pro street drag seats
55185 18.5" hip width aluminum pro street drag seats
Sold as a set for 2 front seats.
Please note these are custom made-to-order and do not qualify for expedited shipping.