UPDATE: So 4+ years later this quick repair appears exactly the same. The car has seen plenty of miles, salt, and track time with no ill effects. Obviously, if you have a nice/valuable car go get it professionally repaired but I’ve been busy enjoying this crappy Miata!

Let’s fix my beater Miata. Keep in mind this car cost $1000, so no this isn’t a professional repair. However, this video should guide you through the basic process of repairing rusty rocker panels (or sills) on a NA Mazda Miata (Mx-5) or similar vehicles.

Disclaimer: Remember, I’m just a guy in a garage that likes to mess with cars…not a trained professional. Use tools and this guide at your own risk. Due to factors beyond my control, no information contained in this video shall create any expressed or implied warranty or guarantee of any particular result. Any injury, damage, or loss that may result from improper use of these tools, equipment, or from the information contained in this video is the sole responsibility of the user.

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Leave a Reply

  1. Jonathan Paulovkin

    Very helpful guide! Thank you for this! I will be attempting this myself on my '95 NA I just purchased

  2. Jayson Burns

    Beautiful repair man…very well done

  3. Vabian r.t

    Its satisfying i love your videos

  4. Bradley Wiesner

    Extra tip. Sand Bondo shortly after it starts to harden.

  5. Thomas

    hey! Just started working on my own NA, a lot less sever than this rust, so far. Do you wear any eye protection for those sparks? Are normal clear safety goggles okay, or should I have something like a welder's mask?

  6. Victor Mordant

    4 years later, where did you get the remplacement panel ? Whats the exact composition of it ? I mean its solid but bentable

  7. Yoginand Bissoon Dial

    Can you use JB Weld to bond the replacement metal?

  8. Ja Man

    dont use a sanding disk, the metal you exposed with it could be too thin now.

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