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proper way to fix this?

rockinrich

Contributor
Jr. Member
Joined
May 27, 2010
Messages
299
My guess is cut the rust out and weld in a small piece of sheet metal,or could i spray a rust converter such as ospho on it and just lay some crappy tack welds to close it up,it's not a very wide gap at all,maybe a 1/4 inch at most in height any thoughts?Also if you look at the floor area to me it seems like just surface rust and feels solid so would it be a good idea to spray ospho on it?I plan on putting lizard skin on the floor later.
 

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Speedrdr

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Learning Member
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Nov 27, 2017
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1,295
Loc.
Paris, MS
The vendors sell d/s and p/s, for lack of a better word, patch panels. If your floors have a “see-through” section at all, it needs attention. My opinion here is if it’s rusted through at all, it’s just gonna get worse. You can cut out and replace the entire panel or just enough to get to solid metal and use whatever metal you choose, but it really needs repair.
My 2cents worth.

Randy
 
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rockinrich

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Jr. Member
Joined
May 27, 2010
Messages
299
The vendors sell d/s and p/s, for lack of a better word, patch panels. If your floors have a “see-through” section at all, it needs attention. My opinion here is if it’s rusted through at all, it’s just gonna get worse. You can cut out and replace the entire panel or just enough to get to solid metal and use whatever metal you choose, but it really needs repair.
My 2cents worth.

Randy
I completely agree,i just want to take out what i have to,the floor itself is solid just some surface rust which hopefully i can take care of with some rust converter.
 

thegreatjustino

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Red Head Grease Monkey
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Jan 23, 2002
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15,735
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Stockton, CA
i'd cut it out and buy the new floor board pieces to weld in.

I wouldn't bother buying a pre-fabbed floor patch panel for that. Cut all the rust out to good metal, get a piece of sheet metal the same gauge as the floor, gently bend it to match the angle at the firewall between two 4x6s, weld in the patch.
 

.94 OR

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Bronco Guru
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Jul 5, 2009
Messages
1,729
The rusted area leading up to the gap will have eroded and be thinner than the parent material when new. Don't be afriad to cut back to the paint line for starters.
The bottom piece should be double layered with the floor support running underneath. You can see the spot weld dimples for refrence.
 

joshua

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Sr. Member
Joined
Jun 5, 2007
Messages
1,169
I wouldn't bother buying a pre-fabbed floor patch panel for that. Cut all the rust out to good metal, get a piece of sheet metal the same gauge as the floor, gently bend it to match the angle at the firewall between two 4x6s, weld in the patch.
This is what I would do if the metal was good a couple inches away from the affected area. Especially if you have access to a metal brake/bender
 
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rockinrich

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I wouldn't bother buying a pre-fabbed floor patch panel for that. Cut all the rust out to good metal, get a piece of sheet metal the same gauge as the floor, gently bend it to match the angle at the firewall between two 4x6s, weld in the patch.
that's what i was thinking,thank you.
 
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rockinrich

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May 27, 2010
Messages
299
The rusted area leading up to the gap will have eroded and be thinner than the parent material when new. Don't be afriad to cut back to the paint line for starters.
The bottom piece should be double layered with the floor support running underneath. You can see the spot weld dimples for refrence.
right on,thank you.
 

Shimmy

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1977 Bronco
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Jun 20, 2021
Messages
658
Loc.
Maple Valley
Are you saying replace the whole floor?

no. i meant i'd probably cut away all rust from yours to see how much of the replacement board piece i'd use. if it's substantial enough, i'd buy the board and cut out that piece from it or potentially replace the entire board. my custom sheet metal skills aren't that great and i'd be factoring in the cost to buy a piece of sheet metal vs the replacement board
 
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rockinrich

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Messages
299
no. i meant i'd probably cut away all rust from yours to see how much of the replacement board piece i'd use. if it's substantial enough, i'd buy the board and cut out that piece from it or potentially replace the entire board. my custom sheet metal skills aren't that great and i'd be factoring in the cost to buy a piece of sheet metal vs the replacement board
I got ya,that makes sense,yeah my sheet metal skills are non existent lol,thank you.
 

jamesroney

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Sep 11, 2007
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1,752
Loc.
Fremont, CA
no. i meant i'd probably cut away all rust from yours to see how much of the replacement board piece i'd use. if it's substantial enough, i'd buy the board and cut out that piece from it or potentially replace the entire board. my custom sheet metal skills aren't that great and i'd be factoring in the cost to buy a piece of sheet metal vs the replacement board
Be careful cutting out rusty metal on Early Broncos. I started cutting the minimum amount, and ended up here…
 

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