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Sorry for what has probably been covered but I tried search a few times.
Car is a 1998 with 6,000 miles and when you put on the brakes hard the seat slides about 1/4 in the track and then under acceleration will slide back. Passenger seat does the same thing. The 1997 that I almost bought a few days ago was doing the same thing on the power driver side. I have had a few newer Vettes and this never happened and does not seem like the classic "rocking" I have read about.
At 6,000 miles I couldn't turn it down so I'm sorry for asking
Is it part of the motor? Is it expensive, I only intend on doing the drivers side.
Thanks, I take delivery tomorrow when the check clears, it was too pretty a car to turn down.
That sounds like the classic symtom of a bad bushing in the seat track assembly. IIRC there are 2 rubber bushings on each track that just degrade and disintegrate after the years. I would bet that when you take the seat apart, they will be cracked and no good anymore. I had the same exact symtoms with my '97 and this is what I found to be the case when repairing my Driver side seat(haven't done the pass seat yet, but it's same thing). I posted pics of the chewed up bushings on CF, so just do a search and you'll get all kinds of info. I changed out my bushings with plastic washers that I had to grind down on one side just a tad. It was an easy fix and well worth it, since it's frustrating to slide back & forth. HTH
I had some rubber roofing material from a roof job I did at work and it was .058 thick if I recall correctly. I used two layers of that on each side of the nut (cut to shape very closely) and one layer on either side of the nut. For the bottom of it I used what was left of the original rubber which was probably not more than .010 thick, if even. For that I think some weatherstrip adhesive would work well.
I did just the drivers side but my right seat didn't need work yet. The process was pretty easy but make sure you have a clean place for your seat. I laid out clean cardboard to work on, worked great.
I also had to put a vice grips on a hex torx bit to get those screws out which require the special shorter wrench (that I didn't have). Those needed some serious juju to snap loose.