1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

Frame cracked.

Discussion in 'Tech Discussion' started by john ward, Feb 6, 2019.

  1. john ward

    john ward Junior Member

    Posts:
    16
    Likes Received:
    3
    Joined:
    Aug 8, 2018
    Location:
    UK
    First Name:
    john
    Truck Year:
    83
    Truck Model:
    c10
    Engine Size:
    305
    Hi anyone had problem with frame cracking and breaking up around the front shock mounting bolt,was thinking about large thick washer welded in, any recommendations would help, did notice bolt was loos when i took of mabe why cracked. 2019-02-06 15.31.39.jpg
     
  2. TravisB

    TravisB Full Access Member

    Posts:
    214
    Likes Received:
    74
    Joined:
    Jan 3, 2018
    Location:
    Kentucky
    First Name:
    Travis
    Truck Year:
    1978
    Truck Model:
    C10
    Engine Size:
    350
    From the looks of this, my guess is your truck is lowered and the stock shock has been bottoming out and transferring all that force to this bolt. Either that or your shock was too long and the same thing is happening when you hit a big bump.

    You can probably repair that by getting it flat again there and sticking in a big washer but don't take my word for it, I am just making a guess and have no experience in frame repairs.
     
    Snoots and john ward like this.
  3. rpcraft

    rpcraft Full Access Member

    Posts:
    997
    Likes Received:
    303
    Joined:
    May 31, 2016
    Location:
    Texas
    First Name:
    Robert
    Truck Year:
    1985
    Truck Model:
    Jimmy
    Engine Size:
    0.0
    As cracked as that is at this point I would just grind and cut it out and weld in a flat piece that has a higher shock mounting point. Like TravisB mentioned, this is probably a result of your shock being too long and bottoming out so doing this would allow you to move the shock mount up some to accommodate the shock length and technically, if you already have your welding gear and some scrap metal that is probably going to be cheaper than replacing the shocks, and you can easily carry it over to the other side.
     
    john ward likes this.
  4. john ward

    john ward Junior Member

    Posts:
    16
    Likes Received:
    3
    Joined:
    Aug 8, 2018
    Location:
    UK
    First Name:
    john
    Truck Year:
    83
    Truck Model:
    c10
    Engine Size:
    305
    Ok thanks guys i was thinking weld a plate and drill new hole but it sits at a angle on original frame, like punched into a dome sticking out with hole in, the truck has been lowered now but found this as putting new shocks on, was standard when this happened i was thinking a big thick washer and try and shape dome and weld in, it looked like the shock mount has been loose and banging about may have caused cracking ?
     
  5. rpcraft

    rpcraft Full Access Member

    Posts:
    997
    Likes Received:
    303
    Joined:
    May 31, 2016
    Location:
    Texas
    First Name:
    Robert
    Truck Year:
    1985
    Truck Model:
    Jimmy
    Engine Size:
    0.0
    You could but cutting that hump out and just putting a plate with some triangulated tabs out a little further is going to amount to the same thing, just take far less time from a fabrication standpoint and with a little gusseting it will be far stronger than the original setup.
     
    john ward likes this.
  6. Honky Kong jr

    Honky Kong jr Super Sarcastic Man

    Age:
    46
    Posts:
    14,798
    Likes Received:
    9,084
    Joined:
    Jun 14, 2016
    Location:
    Denver,PA
    First Name:
    J-me
    Truck Year:
    87
    Truck Model:
    V10
    Engine Size:
    Lil BB 407
    First and for most before you weld anything over it take a 1/16” drill bit and drill a hole at the end of each crack. If you don’t it will continue to crack even with shit welded over it.
     
    Paladin, Blue Ox, Dougnsalem and 3 others like this.
  7. bucket

    bucket Super Moderator Staff Member

    Age:
    37
    Posts:
    17,941
    Likes Received:
    2,981
    Joined:
    Aug 3, 2010
    Location:
    Usually not in Ohio
    First Name:
    Andy
    Truck Year:
    '77, '78, '79, '84, '88
    Truck Model:
    K5 thru K30
    Engine Size:
    350-454
    I'd weld in a big fender washer on each side, then reinstall the shock.
     
    john ward likes this.
  8. Honky Kong jr

    Honky Kong jr Super Sarcastic Man

    Age:
    46
    Posts:
    14,798
    Likes Received:
    9,084
    Joined:
    Jun 14, 2016
    Location:
    Denver,PA
    First Name:
    J-me
    Truck Year:
    87
    Truck Model:
    V10
    Engine Size:
    Lil BB 407
    After the holes are drilled and the cracks terminated
     
    john ward likes this.
  9. rpcraft

    rpcraft Full Access Member

    Posts:
    997
    Likes Received:
    303
    Joined:
    May 31, 2016
    Location:
    Texas
    First Name:
    Robert
    Truck Year:
    1985
    Truck Model:
    Jimmy
    Engine Size:
    0.0
    Be sure while you are at it use eye protection and hearing protection. And don't forget the safety shoes, hand protection and flame retardant clothing too. :p

    Sorry HK, I could not resist You are correct though and it is worth making sure it is done right for someone who is not familiar with it, lol :roflbow:
     
    john ward likes this.
  10. bucket

    bucket Super Moderator Staff Member

    Age:
    37
    Posts:
    17,941
    Likes Received:
    2,981
    Joined:
    Aug 3, 2010
    Location:
    Usually not in Ohio
    First Name:
    Andy
    Truck Year:
    '77, '78, '79, '84, '88
    Truck Model:
    K5 thru K30
    Engine Size:
    350-454
    Yes, and weld the cracks too.

    I often forget to mention the basics. Some things are just built in now, lol.
     
    john ward likes this.
  11. eskimomann209

    eskimomann209 Full Access Member

    Posts:
    81
    Likes Received:
    32
    Joined:
    Jan 9, 2019
    Location:
    Modesto
    First Name:
    Marcus
    Truck Year:
    1973
    Truck Model:
    C10
    Engine Size:
    5.3
    How strange
    I just seen one like this locally too
     
  12. john ward

    john ward Junior Member

    Posts:
    16
    Likes Received:
    3
    Joined:
    Aug 8, 2018
    Location:
    UK
    First Name:
    john
    Truck Year:
    83
    Truck Model:
    c10
    Engine Size:
    305
    Thanks all, i would have cut a 6x6 piece out of another frame and welded in but no chance finding one over hear in uk.
     
  13. Honky Kong jr

    Honky Kong jr Super Sarcastic Man

    Age:
    46
    Posts:
    14,798
    Likes Received:
    9,084
    Joined:
    Jun 14, 2016
    Location:
    Denver,PA
    First Name:
    J-me
    Truck Year:
    87
    Truck Model:
    V10
    Engine Size:
    Lil BB 407
    Frame splicing entails a whole different approach.
     
    Big Chip and john ward like this.
  14. morrow07

    morrow07 Full Access Member

    Posts:
    74
    Likes Received:
    16
    Joined:
    Jan 7, 2014
    Location:
    San Mateo, Ca
    First Name:
    Ryan
    Truck Year:
    1977 - 1989
    Truck Model:
    Cheyenne - V2500
    Engine Size:
    406 - 350
    I was concerned about that, and installed these relocators. A few different companies produce them, and they are inexpensive. I think I paid about $40. It slightly improves the angle of the shock as well.

    s-l300.jpg

    Not mine, just a stock photo.
     
  15. rpcraft

    rpcraft Full Access Member

    Posts:
    997
    Likes Received:
    303
    Joined:
    May 31, 2016
    Location:
    Texas
    First Name:
    Robert
    Truck Year:
    1985
    Truck Model:
    Jimmy
    Engine Size:
    0.0
    Thanks for posting an image of what I was shooting for. I think a picture translates better than my description. I was planning on doing that with mine for the front and rear as well. On the K5's the rear is usually so quick to tear out of the frame. I think in my case though I was planning on putting them on the lower rail and hopefully running a stock height shock.
     
    john ward likes this.

Share This Page