Driveshafts....all the same?

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by 6cuda6, Sep 13, 2021.

  1. 6cuda6

    6cuda6 Light Load Member

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    I extended a 670 by 54" to make a motorhome ....so added 10 feet of rail to the ends then moved the mid axle to the rear position and moved/re-drilled fotmr the rear axle.
     
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  3. Ridgeline

    Ridgeline Road Train Member

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    Pricy?

    The last one I had made was $490 and this included u joints, Weller truck parts.

    There is a length restriction on them because they will twist if they are too long.

    Someone I know made a motor home out of some kw and he had a long drive shaft made for it. The shop said he had to split it but he told them just to make it. They did, he has a horrible vibration between 30 and 50 to the point the truck could not be driven, so he ended up splitting the driveshaft and the vibration vanished.

    pay for it done right, it is a critical component.
     
  4. lester

    lester Midwest's #1 Feed Hauler

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    Make sure you have your driveline angles checked
     
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  5. 6cuda6

    6cuda6 Light Load Member

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    That price i could live with but here in the north you can double that at least.....i will split this so three pieces as no matter how it gets sorted its to long....basically add another 54" shaft to the mix. Hence the question as there are 2 manufacturers that use a 54" shaft which would be easy. (As long as the yokes match of course)
     
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  6. JonJon78

    JonJon78 Road Train Member

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    Last week I was quoted $6000 for a complete new drive shaft for my peterbilt 389 from Inland truck service OKC.
     
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  7. BoxCarKidd

    BoxCarKidd Road Train Member

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    We are on the same page here. Some problems I ran into was a late model Mack inter axle shaft. The yokes were longer than the old standard. Bought a new shaft from the fab shop. It fit right in but had a vibration a couple weeks later. While off road the new shaft yokes bottomed on the strap bolts for the pinion and through shaft yokes. This bent the yokes and the phone call to the shop did not go well. Bought a new shaft from Mack for $800. Two more u joints, yokes, seals, and yoke nuts.
    Had a farm truck with a worn out slip yoke. Real farm truck with off road tires and no tag. Told him I just wanted the slip yoke cut off the old tube and a new one put on. He asked that's it? Yes: Its a farm truck. He brought it back as I requested for $500. Should have asked what a new one cost. It was under 4 feet long.
    I thank everyone before and after this post for being correct in their area and application.
    Still wonder what you are doing but price things before you jump in saving lots of money.
     
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  8. Last Call

    Last Call Road Train Member

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    That included 2 hookers and a big bag of cocaine right ????...
     
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  9. Final Drive

    Final Drive Road Train Member

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    Why don't you take it to your local Drive Line Service Center?
     
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