I used the farthest back original holes on the seat tracks and then used the aluminum flat bar as an adapter for the Corbeau's. Had to scrounge around but found a couple pics of when I did this on the T-Bird as it has the same seats:
Believe I had to grind the tops on the rivets but not 100% sure as this was years ago:
That should give you the idea. Also, you can shave 1" off the bottom cushion and that helps alot. I ordered them that way for the Coupe and forgot on the T-Bird so had to do that and it makes a lot of difference. I still sit nowhere near as low as the old Turbo Coupe seats I had in there and regret selling them to this day.
I have the Griggs Racing upper subframes in both cars so I set the seat back as far as it would go. With the seat all the way back the rear of the bottom seat frame is about 1/8" of an inch from the top of the upper sub frame on both cars. This limits me from using their extenders so I never even tried them.
Believe I had to grind the tops on the rivets but not 100% sure as this was years ago:
That should give you the idea. Also, you can shave 1" off the bottom cushion and that helps alot. I ordered them that way for the Coupe and forgot on the T-Bird so had to do that and it makes a lot of difference. I still sit nowhere near as low as the old Turbo Coupe seats I had in there and regret selling them to this day.
I have the Griggs Racing upper subframes in both cars so I set the seat back as far as it would go. With the seat all the way back the rear of the bottom seat frame is about 1/8" of an inch from the top of the upper sub frame on both cars. This limits me from using their extenders so I never even tried them.