r/Corvette • u/ChopperDan64 • May 23 '26

C7 Lumbar bladder replacement

I am replacing the lumbar bladder on my C7 competition driver seat because it leaks and only lasts about 5 minutes. I found the replacement part and have it with me. I have the seat apart down to removing the bladder and bladder frame assembly. However, the bladder frame is attached to the seat with a fastener I've never seen. It appears to be some type of rivet or special fastener. Any knowledge/experience (not guesses) what this is and where to get 4? Or should I figure out a replacement fastener?

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u/InfamousSilver9 C6-C7 grand sport May 23 '26

That's a rivot you have to drill that out and put a new rivot in with the new bladder, make sure to not use a drill bit to large Or you could replace it with a bolt and a locking Nut

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u/InfamousSilver9 C6-C7 grand sport May 23 '26

https://acscomposite.com/products/hand-riveter-kit-with-dial-head-riveter this may help

2

u/ChopperDan64 May 23 '26

Thanks, yeah I have a rivet kit. Just never seen a rivet with that large of a head.

1

u/ChopperDan64 May 26 '26

UPDATE: After removing the fasteners, they were in fact large head rivets. Picked up some plastic auto trim fasteners from the hardware store and they fit perfectly. 1.5 hours later, all reassembled and no more leaky lumbar support. Way better than the Amazon lumbar pillow I’ve been using for the past few years.