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rear ubolt question

Discussion in 'The Garage' started by mollyman, Apr 6, 2007.

  1. mollyman

    mollyman 1/2 ton status

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    Location:
    west virginia
    I am putting a 14blt ff out of a 1ton into my 81 k10 sub. I had to cut the ubolts holding the old 12blt in to get it out. So my question is I will go get new ubolts for a 14blt ff but can I reuse the ubolt "plates" that were used with the 12blt or do 14blts use different size plates than a 12blt? Any help would be great, THANKS
     
  2. obijuan

    obijuan 1/2 ton status GMOTM Winner

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    the axle tubes are different size iirc. make sure to get the 14ff plates.
     
  3. gmc4cw

    gmc4cw 1/2 ton status GMOTM Winner

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    you can squeeze the U-bolts into the old plates, but the proper and easier way is to get plates for a 14 bolt. I'm sure some of the vendors on here can make you a set if you can't find them in the junkyard or the classifieds here.
     
  4. 4X4HIGH

    4X4HIGH 1 ton status Premium Member GMOTM Winner

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    You need plates for a 14ff. Not only is the axle tube diameter larger so are the U-bolts.
     

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