Cab mount bracket destroyed by rust

Discussion in 'Paint / Body / Detailing' started by 95bucket, Apr 18, 2017.

  1. 95bucket

    95bucket Supporting Member

    Messages:
    115
    Likes Received:
    30
    Joined:
    Feb 1, 2017
    Location:
    Maryland
    Hence my 1/4" plate steel purchase.
    BTW how would you go about keeping rust off the new brackets? I was gonna leave the old brackets and build the new one around them. I figured treating the old ones for rust then top coating. Plug welding the new metal to old and using cold galvanizing compound in between the points of contact on the new steel. Then Bed liner the damn thing. I'm open to other ideas
     
  2. 90halfton

    90halfton I'm Awesome

    Age:
    32
    Messages:
    476
    Likes Received:
    161
    Joined:
    May 23, 2015
    Location:
    Hutchinson, Ks.
    Sounds like a solid rust proofing plan. Nothing will keep steel from rusting, should prolong it pretty good though
     
  3. Bob L

    Bob L Supporting Member

    Messages:
    652
    Likes Received:
    297
    Joined:
    Oct 11, 2016
    Location:
    Centerville , Ma.
    Over lapping two pieces of metal is the worst thing you can do to prevent future rust. Block up the cab where it needs to be cut the old bracket off and weld on a new one. Two triangles with a top welded on and a hole for the mount. Also two pieces welded over each other will probably creak and squeek as the old metal gets even weaker.
     
    95bucket likes this.
  4. 90halfton

    90halfton I'm Awesome

    Age:
    32
    Messages:
    476
    Likes Received:
    161
    Joined:
    May 23, 2015
    Location:
    Hutchinson, Ks.
    This is true, I overlooked the new over old part.
     
  5. 95bucket

    95bucket Supporting Member

    Messages:
    115
    Likes Received:
    30
    Joined:
    Feb 1, 2017
    Location:
    Maryland
    What gauge steel did you use? I just bought 1/4" but the welder I have is only good for 1/8" maybe (the box says up to 3/16" which is likely a stretch) because it's 90amps AC only (flux core fed). Wondering if I should even try this repair without investing some of my parts budget to getting a new welder. $$$$ :(
    What gauge steel in your opinion is upto the task of replacing stock brackets? Having said that, the stock brackets are pretty damn thin so maybe I don't need to go so heavy. Although, overkill is never bad when it comes to structural repairs imo.
     
  6. BIG_KID

    BIG_KID OBS Enthusiast

    Messages:
    64
    Likes Received:
    11
    Joined:
    Dec 5, 2016
    Location:
    Northern indiana
  7. leakers

    leakers Newbie

    Messages:
    5
    Likes Received:
    1
    Joined:
    Jul 31, 2015
    I had the body mount rust issue, but didn't realize how bad it was. Then one day I had a bit of an off road experience thanks to someone else's bad driving, and the rh rear cab mount broke through while I was bouncing through a ditch....along with engine and gearbox mounts.
    The warning I have here is that the back lower seam of the cab sliced through the top of the gas tank.... I was literally sitting on a Bomb, I did not realize that at the time and drove another few hundred miles. The truck did not burn but one spark and it easily could have...
    I made a temporary repair with some large steel bearing retainers (washers) from an agricultural machinery dealer and a stack of rubber circles I cut out of some old mudflap/conveyer belt rubber.
    To make the permanent repair I bought the rubber mounts from LMC truck and found someone in Arizona ( dry /no rust) who was willing too cut mounts along with a piece of frame off a wreck for me, I got them back to New Zealand where I trimmed them up and welded them to my frame ... looks original and therefore is legal here without an engineers report.
    I have used the poly bushes before on another truck and found them harder riding and after a while the squeaked, NOTHING would stop it permanently until I put the rubber ones back, I have found the same with suspension parts.
     

Share This Page