Is it possible and what is involved in swapping seats from a 90 900 into a 91? The way the rails attach to the floor seems different, but will they still bolt up?
They could always drill and tap a bolt hole where the hook and latch flange is and mount them that way...Should save a lot of the headache of swapping out mounting rails.no. 1991's use the same bolt pattern as a 9000; the 4 torx screws. 1990 seats have one lone bolt in the front, then this razoo hook/loop through attachment on the back. TOTALLY different.
That being said....if your buddy is mongo hard-up for 1991 seats in his 1990 car, I cut a set of the 1991-style mounts out of a car back in the day that you can have. You'll have to weld them in though.