need to replace rear diff. 10 bolt 3.73 to 14 bolt 3.73

Discussion in 'Axles + Brakes' started by 95extendedscott, Jun 11, 2019 at 10:11 PM.

  1. 95extendedscott

    95extendedscott Newbie

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    im new to this website and purchased a 1995 k1500 Silverado 4x4 5.7l it has a 10 bolt 3.73 and its going out I tow lawn equipment with it and noticed it is howling and clunking when I put it in gear due to play on pinion gear. so my fiancé works at a salvage yard and I found a 98 Silverado heavy half ton 14 bolt in the yard the rpo codes are GT4 G80. WILL THIS WORK?
     
  2. Jglew82

    Jglew82 I fix stuff

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    If the 98 is a 4wd then yes, it will be a direct swap. If it's a light duty 2500 (some call this a heavy half) 2wd then it will be a lot narrower than yours.
     
  3. Eskimomann209

    Eskimomann209 I'm Awesome

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    Might need the conversion U joint and you’ll need the leaf spring perches
     
  4. 95extendedscott

    95extendedscott Newbie

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    ok thanks
     
  5. 95extendedscott

    95extendedscott Newbie

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    its a 4WD half ton so im assuming those RPO codes are correct for a 3.73 gear ratio? that's what I have and just come across this one.
     
  6. Jglew82

    Jglew82 I fix stuff

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    Correct. GT4 is 3.73 and G80 is the limited slip unit.

    And Eskimomann is correct, you'll need the spring bolt plate and new U-bolts along with either a conversion U joint or swap your yokes.
     

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