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floor replacement!!??

Discussion in 'The Garage' started by dirty77, Mar 9, 2006.

  1. dirty77

    dirty77 Registered Member

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    I have a 1977 jimmy and just pulled all the interior out except the dash to spray the whole thing with the spray-on bedliner stuff. Now I have to repair the floor. Would it be cheaper/better to just use sheet metal and make my own or should I just go ahead and order new ones from LMC? Back of bed and the entire front section are going to be relaced.
     
  2. 3rdshiftdesign

    3rdshiftdesign 1/2 ton status

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    I think it's better to use regular sheet metal. It's a little bit heavier, but I like it. I've never really used the LMC panels, but from what I understand they don't always fit so well.

    Also, the sheet metal would probably be a much cheaper optionl.
     
  3. wubba_65

    wubba_65 Registered Member

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    I used 3/16 plate to replace the entire cargo area of my floor. I also extended it to cover the rear passenger foot area so that it is a level bed. It is once piece too. It was heavy, but it is solid, and it will never rust out as long as I have it.
     
  4. dirty77

    dirty77 Registered Member

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    thanks guys this is gonna be one hell of a deal for me. first time welder and first time doing any kind of metal work!!!!:crazy:
     
  5. Janitorjim8

    Janitorjim8 1/2 ton status

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    Just take your time, measure twice cut once. Make nice cardboard cut outs first.
     
  6. dirty77

    dirty77 Registered Member

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    Thanks guys I really appreciate all the advice. If u can think of anything else please put in on here.
     
  7. 1985_K5_Silverado

    1985_K5_Silverado 1/2 ton status

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    Aluminum Diamond Plate looks good (black painted Diamond Plate looks really good) and won't rust. DP may be cheaper than you expect on ebay.
     
  8. SCOOBYDANNN

    SCOOBYDANNN 1/2 ton status

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    did sheet metal on mine

    floor out
    [​IMG]

    new one in
    [​IMG]

    dont know if 76-79 have the same floors as 73-75 but make sure there aren't any spot welds in the middle of the floor---it can be real hard to remove the floor when you don't know its welded:doah: :D :haha:
     
  9. noahrob

    noahrob 1/2 ton status Author

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    Do you have a picture of how you tied that sheet metal to the rocker? Actually, it looks like your rocker is a slider? So, do you have any pictures of how you tied the sheet metal to whatever the door hits (or would hit if you had any) on the bottom?
     
  10. dirty77

    dirty77 Registered Member

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    I cant weld the aluminum diamond plate in can I? This isnt my daily driver but i still want it to look decent and be strong as possible without being to heavy. If all that is possible?
     
  11. dirty77

    dirty77 Registered Member

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    Thanks for the pics SCOOBY!! What guage is that sheet metal?
     
  12. SCOOBYDANNN

    SCOOBYDANNN 1/2 ton status

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    someone correct me if im wrong but factory is 16 guage, tiwan (jc whitney, LMC) are 20 ga...mine are 18
     
  13. diesel4me

    diesel4me 1 ton status Premium Member

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    I'd avoid aluminum...

    I've seen aluminum floor patches cause ten times more rot here..many people use aluminum roof flashing and pop rivets as a cheap and easy fix to get a vehicle decent looking enough to pass inspection here..but after a few months,and a salt bath during winter months,the aluminum VS steel creates a current,that causes electrolosis,and makes a battery of sorts..your floor looks like a white crystalline mess that is like battery acid,it eats the steel and aluminum,unless both are separated by some kind of insulator,like tar,plastic,etc..

    One K5 I bought had all its floor rust patched that way,and it was a horror show --I had to cut it all out and do it right again!..Aluminum offers little structural strength also,even the diamond plate like running boards are made of is brittle..flex it a few times and it snaps like peanut brittle!..(and no,you cant weld aluminum to steel!)..

    I'd use steel,galvanized lasts the longest,but is tricky to braze or weld without getting sick from the fumes the zinc makes when heated..I did my 74 K20 with 16 gauge galvanized sheet metal,,and used some garden fence posts that were "U" shaped for braces to stiffen the floors up-- its floors were still mint 15 years later when I scrapped it last May..only part of the truck that wasn't completely rotted away!..if only GM had galvanized the Blazers and all the other trucks from the factory!..:doah:
     

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