The Corvette seat is less then stellar. They wear out along the driver side bolster and rock on the base fore and aft on the C5's. Luckily there is tons of help for us. With new leather covers or just a basic seat cover this section will cover all your options. The wire springs in the seat bottom, and the bars in the bolsters can also wear thru the foam and leather, but that can be fixed by placing layer of burlap between the springs and the foam.
Racing your Corvette and not sure what will fit read on.
Corvette seats for the C5 are known for rocking or moving fwd and aft. The problem is as the seats are used they start to wear out all the different mechanical parts in the seat. This wear adds up and causes the movement. You can try and fix the seat with washers or a tension device. But we try to recommend things that are the best fix that will last the longest with the lowest cost. Our choice would be to install this Rocking Seat fix from Dorman. Every C5 Corvette will have this issue several times in its life span. The Dorman part is the most economical and easiest fix.
The important thing to remember is the width of the seat base. The tight spot is between the center tunnel and outer frame rail. All research I have done brings me to the conclusion that 19.5 inches is the maximum width. As always I would encourage everybody to double check with the seat manufacturer first for fit. Second note about aftermarket seats is you will most likely loose the electric control functions of your seat. Most require mounting a fixed base or a manual sliding mechanism.
Corbeau A4 Seat
Seat fits tight with some modifications
Pictures Courtesy of Corbeau
C6 Seat Upgrade in a C5 Picture
Pictures Courtesy of Sparco
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C5 power sport seats Ican hear the air pumps working but no air in back or bolster blatters Not rated yet
I just fixed my rocking seats with a shim kit from Corvette Central it seamad to work ok,However my air blatters on the lower back and the side bolsters …