When I did mine I just put the stock plug back, then I used rubberized undercoating, and it helped alot. It got rid of alot of the sound, but once you do it you can never remove the plugs again. But it adds a nice touch to the floor.
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10:46 PM
May 30th, 2005
Eclipse Member
Posts: 2040 From: Woodstock, Ontario Canada Registered: Jun 2004
I just did mine as well. I used tin snips and cut new ones out of galvanized sheet metal from an air duct. I put black silicone around the holes, put the plugs in and then, gave it a coat of roofing tar before I laod the carpet down. No leaks, and no rust :}
[This message has been edited by Eclipse (edited 05-30-2005).]
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12:17 AM
2000RagTop Member
Posts: 3999 From: Sussex, (Milwaukee) Wi. USA, Earth Registered: Jun 2003
I was actually going to post a question about these myself,,,, are they necessary??? the rest of the underneath of my car is perfect,,, except for the "rust plugs" as I call them,,, I was just going to cut out new sheet metal and tack them on from underneath and seal them with seam sealer,,, anyone see anything wrong with this? What is their true purpose? Thanks, Hooter
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02:10 AM
FieroBUZZ Member
Posts: 3320 From: Ontario, Canada Registered: Feb 2001
I cut mine as well from galvanized sheet. They are still available from GM, I think. When the frame was made it was dipped in an anti-rust bath and the holes were to allow the fluid to run out quickly. They don't show and you can seal the holes pretty much however you like.
You obviously did not cut those plugs, they have parts numbers on them! I am sure yoiur talking about the rubber.
I'm sorry Matt, I cut mine as well from galvanized sheet. I used the old "rusty ones" and the "picture" as a guide for making mine. Then I used a sealer when they were installed......
Hey, I'm a Fiero owner. I justify being cheap as an 'engineering challenge!' I cut mine out of galvanized flashing I had, painted them with rustoleum, stuck 'em down with some old silicone gasket goo, then some undercoat...
------------------ John DuRette Custom 85 ; 87 Coupe in the driveway. "Kinda makes you nostalgic for a Members Only jacket"
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11:20 PM
Aug 12th, 2005
black Fiero SE Member
Posts: 341 From: New Hampshire Registered: May 2004
Hi, You can order new GM replacment pans with rubbers for around $20.00 for the whole set through http://www.gmpartsdirect.com/ The Numbers are SMall plate = 1021-5806 $3.17 each Large Plate = 20579955 $ 2.88 each
Hope this helps
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09:59 AM
Aug 18th, 2005
black Fiero SE Member
Posts: 341 From: New Hampshire Registered: May 2004
I havn't installed my new plates yet . I am preping them so they wont rot out again. I am heating up the metal plate so I can seperate it from the rubber backing. I am then cleaning them up and spray painting them silver with clear coat. It seems to me that the replacment plugs I got from GM are made of a metal that looks like it will rust in a minute. After there all apinted I am glueing them back to the rubber gaskets with Liquid nails.
