Frame ramps for 379

Discussion in 'Peterbilt Forum' started by Coolbreezin, Aug 9, 2022.

  1. Coolbreezin

    Coolbreezin Light Load Member

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    Hello everyone. I need to get frame ramps but I don't have holes in my frame for them to bolt to. I know we cannot weld or drill on the truck frame.
    Any advice? 20220722_074636.jpg
     
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  3. AModelCat

    AModelCat Road Train Member

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    Who says you can't drill the frame?

    Drilling the web (vertical portion) is perfectly fine. Drilling the flanges is a huge no-no.
     
  4. lester

    lester Road Train Member

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    As he said above, perfectly fine to drill the frame.
    It can be welded as well if dine by a competent person.
    Especially way on the back of the frame where your ramps would go. What's the worst that would happen? Back of the frame falls off. Not gonna happen anyway
     
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  5. D.Tibbitt

    D.Tibbitt Road Train Member

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    I just added some ramps to my frame . now they arent the greatest but they get the job done for what it is.

    I used 3/16 bit to 1/2 inch to 3/4.. Slow and steady wins the race. You want brand new sharp bits. And drill nice and slow. Going fast is only going to burn up ur bits. Its a all day job if by urself. It took about 6 hours total. To drill the ramp holes into the ramps and then drill the frame out.

    3/4 inch grade 8 bolts with 3/4 inch grade 8 flange lock nuts
     
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  6. Catmando

    Catmando Road Train Member

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    I would find a good tool rental store and rent a magnetic drill it's well.worth the rental if you value you time at all
     
    Last edited: Aug 10, 2022
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  7. AModelCat

    AModelCat Road Train Member

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    Mag drill with an annular cutting bit. Take longer to set up each hole than to drill it.
     
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  8. D.Tibbitt

    D.Tibbitt Road Train Member

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    Doing it by hand builds character :biggrin_25523:
     
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  9. AModelCat

    AModelCat Road Train Member

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    I did the entire frame from my cab back by hand.
     
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  10. Deezl Smoke

    Deezl Smoke Light Load Member

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  11. AModelCat

    AModelCat Road Train Member

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    cke, Deezl Smoke and D.Tibbitt Thank this.
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