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20k front axle conversion

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by dillydog24, Aug 23, 2023.

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  1. Aug 23, 2023 #1
    dillydog24

    dillydog24 Light Load Member

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    IMG_3737.jpeg IMG_3736.jpeg IMG_3738.jpeg IMG_3739.jpeg IMG_3740.jpeg IMG_3741.jpeg IMG_3742.jpeg Sup. Just posting some photos of my current project. Converting a 367 triaxle dump from a 12k lb axle to a 20k lb axle.
    Replaced driver side steering box
    Added passenger side steering box
    Replaced spring hangers
    New threaded bushings and pins
    New shocks
    Added 3 leaf springs
    New u bolts

    Pictures are work in progress.
    Should be ready to slide the axle in tomorrow
     
    dillydog24, Aug 23, 2023
    dillydog24, Aug 23, 2023
    #1
    SL3406, KB3MMX, prostartom and 5 others Thank this.
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  3. Aug 23, 2023 #2
    Cat sdp

    Cat sdp . .

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    You gonna run a cooler ?
     
    Cat sdp, Aug 23, 2023
    Cat sdp, Aug 23, 2023
    #2
    KB3MMX Thanks this.
  4. Aug 23, 2023 #3
    dillydog24

    dillydog24 Light Load Member

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    dillydog24, Aug 23, 2023
    dillydog24, Aug 23, 2023
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    KB3MMX Thanks this.
  5. Aug 24, 2023 #4
    mission_creek

    mission_creek Bobtail Member

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    Is that an old slumberger truck? I have a 365 over the road truck that was converted to a dump truck. How do I tell what size axle is under front? Only has the 3 leaf springs now but squats bad enough where the tires tip in
     
    mission_creek, Aug 24, 2023
    mission_creek, Aug 24, 2023
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    KB3MMX Thanks this.
  7. Aug 24, 2023 #5
    dillydog24

    dillydog24 Light Load Member

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    It’s an old BJ Energy truck. On the front or back of your axle there should be some numbers in the casting or a tag. (i.e. D2000F or E120X)
     
    dillydog24, Aug 24, 2023
    dillydog24, Aug 24, 2023
    #5
    KB3MMX and Oxbow Thank this.
  8. Aug 25, 2023 #6
    W923

    W923 Road Train Member

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    Did you upgrade the ps pump too? Likely going to be hard steering if not due to low flow and having a second box.
     
    W923, Aug 25, 2023
    W923, Aug 25, 2023
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    KB3MMX Thanks this.
  9. Aug 26, 2023 #7
    Cattleman84

    Cattleman84 Road Train Member

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    In my experience... About the only difference from a standard 12k steer and a 20k steer is the number of leaves in suspension and the tag on the axle. Sometimes the 20k has larger king pins, but not generally.
     
    Cattleman84, Aug 26, 2023
    Cattleman84, Aug 26, 2023
    #7
  10. Aug 27, 2023 #8
    dillydog24

    dillydog24 Light Load Member

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    It’s a little stiff, but I do have a larger pump ordered. With two gear boxes you need a pump that can handle at least 6 GPM.
    There’s a noticeable difference between the two I have. Larger drums, bigger pins

    Here’s the finished project
    IMG_3746.jpeg IMG_3747.jpeg IMG_3755.jpeg IMG_3756.jpeg
     
    dillydog24, Aug 27, 2023
    dillydog24, Aug 27, 2023
    #8
    KB3MMX and W923 Thank this.
  11. Aug 28, 2023 #9
    dillydog24

    dillydog24 Light Load Member

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    IMG_2467.jpeg IMG_3760.jpeg Truck sets up better than it use to. Handles like a champ. Feels like I actually have power steering now lol
     
    dillydog24, Aug 28, 2023
    dillydog24, Aug 28, 2023
    #9
    KB3MMX, bluedog911, Dino soar and 1 other person Thank this.
  12. Aug 28, 2023 #10
    W923

    W923 Road Train Member

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    Wish we could get some of that this year…been the slowest year for my dumps since maybe my first or second year in the business.
    did you end up switching the pump to then?
     
    W923, Aug 28, 2023
    W923, Aug 28, 2023
    #10
    KB3MMX Thanks this.
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