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C5 fender mount issue

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Old Sep 12, 2025 | 01:56 PM
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Default C5 fender mount issue

Thinking about trying to use some type of bonding adhesive to bond the inner fender to this rocker panel to keep the fender from flaring out on the bottom. Any other ideas? What adhesive or epoxy would you recommend?

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Old Sep 13, 2025 | 09:55 AM
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How about using a long thin metal kind of brace ? Screw it into the rocker panel first. Align the fender push it in then screw into the bottom of the fender
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Old Sep 13, 2025 | 01:01 PM
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Originally Posted by OUTAKTRL
How about using a long thin metal kind of brace ? Screw it into the rocker panel first. Align the fender push it in then screw into the bottom of the fender
don’t really want to do anymore damage to the rocker panel or the fender if I don’t have too. I’ve seen some people say mount something to the frame as well and I really don’t want to do that. Do you have an idea to do some kind of brace with minimal damage?
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Old Sep 13, 2025 | 01:25 PM
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Just found this as an example. But it’s rigid strong and small. Drill one side into the frame or rocker to secure it in place. Push the bottom of the fender in
so it’s aligned with the other side panel. Drill the other side in under the fender.
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Old Sep 13, 2025 | 02:09 PM
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There are marine adhesives that would work for this application. 3M 4200 would work or 3M 5200 but you would have difficulty with 5200 if you needed to remove it in the future.
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Old Sep 14, 2025 | 10:11 AM
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What about strong double sided tape?
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Old Sep 14, 2025 | 12:33 PM
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I tried to help you in your earlier thread, the fender bolts to the frame (stock) your part of the fender is broken, hence I said to use a metal strap to connect ???

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Old Oct 9, 2025 | 11:45 AM
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Originally Posted by OUTAKTRL
Just found this as an example. But it’s rigid strong and small. Drill one side into the frame or rocker to secure it in place. Push the bottom of the fender in
so it’s aligned with the other side panel. Drill the other side in under the fender.

where do you recommend getting some metal like this to work with
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Old Oct 9, 2025 | 09:03 PM
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Originally Posted by C5isaac
where do you recommend getting some metal like this to work with
https://www.homedepot.com/p/Everbilt...5292/202033975
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Old Oct 10, 2025 | 03:08 AM
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Lots of ways to skin this cat. Just don't adhere the panel to the frame directly!

I did a large washer on one car and epoxied it to the fender bottom. If I did it again? I might slap a rivnut in the frame and epoxy the edges of THAT when I lock it in, then you have a more direct bolt through service. Then fit/align a washer or other piece to the under side of the fender to connect through. That would be pretty bomb proof. Just anti-seize the threads.
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Old Oct 15, 2025 | 08:18 AM
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Originally Posted by Tusc
Lots of ways to skin this cat. Just don't adhere the panel to the frame directly!

I did a large washer on one car and epoxied it to the fender bottom. If I did it again? I might slap a rivnut in the frame and epoxy the edges of THAT when I lock it in, then you have a more direct bolt through service. Then fit/align a washer or other piece to the under side of the fender to connect through. That would be pretty bomb proof. Just anti-seize the threads.
I ended up to using a really tight u clip and clipping it as far down as possible on what’s left of the rocker panel and fender in the original mounting spot. Holds super solid and passed all of my tests. Best thing is you can’t see it unless your under the car and it’s just as or less noticeable then the original mount.
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Old Oct 15, 2025 | 11:04 AM
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Originally Posted by C5isaac
I ended up to using a really tight u clip and clipping it as far down as possible on what’s left of the rocker panel and fender in the original mounting spot. Holds super solid and passed all of my tests. Best thing is you can’t see it unless your under the car and it’s just as or less noticeable then the original mount.
Well, we would like to see it????
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Old Oct 15, 2025 | 10:47 PM
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Originally Posted by helga203
Well, we would like to see it????

no problem I’ll get some pictures tomorrow.
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Old Oct 16, 2025 | 04:03 PM
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Originally Posted by helga203
Well, we would like to see it????
Nothing pretty here but I think it’s better then a bolt and a big washer or drilling into my rocker panel


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Old Oct 16, 2025 | 04:35 PM
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The missing piece had a hole with a plastic static "bolt" to hold it into the frame. That hole should still exist, so all the bottom of the panel needs is a hole and a way for the ring around it to remain secured.

The E clip works too. Those rust like hell but ought to be good for about a decade unless it bounces out.
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Old Oct 16, 2025 | 05:11 PM
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Originally Posted by C5isaac
Nothing pretty here but I think it’s better then a bolt and a big washer or drilling into my rocker panel
It works
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Old Oct 16, 2025 | 05:39 PM
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Originally Posted by Tusc
The missing piece had a hole with a plastic static "bolt" to hold it into the frame. That hole should still exist, so all the bottom of the panel needs is a hole and a way for the ring around it to remain secured.

The E clip works too. Those rust like hell but ought to be good for about a decade unless it bounces out.

both mounting point for the fender and for the rocker panel are gone in my case. Wish it wasn’t the case but the spot where I put the u-clip is as close to that area as possible. It holds super tight and I can’t see it unless I look under the car so I’m not that mad at the fix.
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