Skip to content
Free Shipping on most orders over $150.00                    
Free Shipping on most orders over $150.00                    

LLY Duramax Parts

Parts for the LLY Duramax (2004.5 to 2005).

Filters

  • responsive-image responsive-image

    Yukon 11.5in AAM 4.56 Rear Ring & Pinion Install Kit Positraction 4.125in OD Pinion Bearing

    Yukon Gear & Axle
    $3,048.48 - $3,048.48
    $3,048.48
    $3,048.48 - $3,048.48
    $3,048.48

    Yukon Gear Kits combine all the parts you need for your re-gear project. It delivers front and rear ring and pinion gear sets and the proper Yukon ...

    View full details
    $3,048.48 - $3,048.48
    $3,048.48
    $3,048.48 - $3,048.48
    $3,048.48
  • responsive-image responsive-image

    Yukon 11.5in AAM 4.56 Rear Ring & Pinion Install Kit 4.125in OD Pinion Bearing

    Yukon Gear & Axle
    $1,581.21 - $1,581.21
    $1,581.21
    $1,581.21 - $1,581.21
    $1,581.21

    Yukon Gear Kits combine all the parts you need for your re-gear project. It delivers front and rear ring and pinion gear sets and the proper Yukon ...

    View full details
    $1,581.21 - $1,581.21
    $1,581.21
    $1,581.21 - $1,581.21
    $1,581.21
  • responsive-image responsive-image

    Yukon 11.5in AAM 4.11 Rear Ring & Pinion Install Kit Positraction 4.125in OD Pinion Bearing

    Yukon Gear & Axle
    $3,048.48 - $3,048.48
    $3,048.48
    $3,048.48 - $3,048.48
    $3,048.48

    Yukon Gear Kits combine all the parts you need for your re-gear project. It delivers front and rear ring and pinion gear sets and the proper Yukon ...

    View full details
    $3,048.48 - $3,048.48
    $3,048.48
    $3,048.48 - $3,048.48
    $3,048.48
  • responsive-image responsive-image

    Yukon 11.5in AAM 3.73 Rear Ring & Pinion Install Kit Positraction 4.125in OD Pinion Bearing

    Yukon Gear & Axle
    $3,048.48 - $3,048.48
    $3,048.48
    $3,048.48 - $3,048.48
    $3,048.48

    Yukon Gear Kits combine all the parts you need for your re-gear project. It delivers front and rear ring and pinion gear sets and the proper Yukon ...

    View full details
    $3,048.48 - $3,048.48
    $3,048.48
    $3,048.48 - $3,048.48
    $3,048.48
  • responsive-image responsive-image

    Yukon 11.5in AAM 4.11 Rear Ring & Pinion Install Kit 4.125in OD Pinion Bearing

    Yukon Gear & Axle
    $1,560.66 - $1,560.66
    $1,560.66
    $1,560.66 - $1,560.66
    $1,560.66

    Yukon Gear Kits combine all the parts you need for your re-gear project. It delivers front and rear ring and pinion gear sets and the proper Yukon ...

    View full details
    $1,560.66 - $1,560.66
    $1,560.66
    $1,560.66 - $1,560.66
    $1,560.66
  • responsive-image responsive-image

    Yukon 11.5in AAM 3.73 Rear Ring & Pinion Install Kit 4.125in OD Pinion Bearing

    Yukon Gear & Axle
    $1,562.71 - $1,562.71
    $1,562.71
    $1,562.71 - $1,562.71
    $1,562.71

    Yukon Gear Kits combine all the parts you need for your re-gear project. It delivers front and rear ring and pinion gear sets and the proper Yukon ...

    View full details
    $1,562.71 - $1,562.71
    $1,562.71
    $1,562.71 - $1,562.71
    $1,562.71
  • responsive-image responsive-image

    Yukon 10.5in GM 14 Bolt 5.38 Thick Rear Ring & Pinion Install Kit

    Yukon Gear & Axle
    $1,103.42 - $1,103.42
    $1,103.42
    $1,103.42 - $1,103.42
    $1,103.42

    Yukon Gear Kits combine all the parts you need for your re-gear project. It delivers front and rear ring and pinion gear sets and the proper Yukon ...

    View full details
    $1,103.42 - $1,103.42
    $1,103.42
    $1,103.42 - $1,103.42
    $1,103.42
  • responsive-image responsive-image

    Yukon 10.5in GM 14 Bolt 5.38 Rear Ring & Pinion Install Kit 30 Spline Positraction

    Yukon Gear & Axle
    $2,197.89 - $2,197.89
    $2,197.89
    $2,197.89 - $2,197.89
    $2,197.89

    Yukon Gear Kits combine all the parts you need for your re-gear project. It delivers front and rear ring and pinion gear sets and the proper Yukon ...

    View full details
    $2,197.89 - $2,197.89
    $2,197.89
    $2,197.89 - $2,197.89
    $2,197.89
  • responsive-image responsive-image

    Yukon 10.5in GM 14 Bolt 5.13 Rear Ring & Pinion Install Kit 30 Spline Positraction

    Yukon Gear & Axle
    $2,197.89 - $2,197.89
    $2,197.89
    $2,197.89 - $2,197.89
    $2,197.89

    Yukon Gear Kits combine all the parts you need for your re-gear project. It delivers front and rear ring and pinion gear sets and the proper Yukon ...

    View full details
    $2,197.89 - $2,197.89
    $2,197.89
    $2,197.89 - $2,197.89
    $2,197.89
  • responsive-image responsive-image

    Yukon 10.5in GM 14 Bolt 4.88 Thick Rear Ring & Pinion Install Kit

    Yukon Gear & Axle
    $1,103.42 - $1,103.42
    $1,103.42
    $1,103.42 - $1,103.42
    $1,103.42

    Yukon Gear Kits combine all the parts you need for your re-gear project. It delivers front and rear ring and pinion gear sets and the proper Yukon ...

    View full details
    $1,103.42 - $1,103.42
    $1,103.42
    $1,103.42 - $1,103.42
    $1,103.42
  • responsive-image responsive-image

    Yukon 10.5in GM 14 Bolt 4.56 Thick Rear Ring & Pinion Install Kit

    Yukon Gear & Axle
    $1,073.89 - $1,073.89
    $1,073.89
    $1,073.89 - $1,073.89
    $1,073.89

    Yukon Gear Kits combine all the parts you need for your re-gear project. It delivers front and rear ring and pinion gear sets and the proper Yukon ...

    View full details
    $1,073.89 - $1,073.89
    $1,073.89
    $1,073.89 - $1,073.89
    $1,073.89
  • responsive-image responsive-image

    Yukon 10.5in GM 14 Bolt 4.88 Rear Ring & Pinion Install Kit 30 Spline Positraction

    Yukon Gear & Axle
    $2,258.33 - $2,258.33
    $2,258.33
    $2,258.33 - $2,258.33
    $2,258.33

    Yukon Gear Kits combine all the parts you need for your re-gear project. It delivers front and rear ring and pinion gear sets and the proper Yukon ...

    View full details
    $2,258.33 - $2,258.33
    $2,258.33
    $2,258.33 - $2,258.33
    $2,258.33
  • responsive-image responsive-image

    Yukon 10.5in GM 14 Bolt 4.56 Rear Ring & Pinion Install Kit 30 Spline Positraction

    Yukon Gear & Axle
    $2,197.89 - $2,197.89
    $2,197.89
    $2,197.89 - $2,197.89
    $2,197.89

    Yukon Gear Kits combine all the parts you need for your re-gear project. It delivers front and rear ring and pinion gear sets and the proper Yukon ...

    View full details
    $2,197.89 - $2,197.89
    $2,197.89
    $2,197.89 - $2,197.89
    $2,197.89
  • responsive-image responsive-image

    Yukon 10.5in GM 14 Bolt 4.11 Rear Ring & Pinion Install Kit 30 Spline Positraction

    Yukon Gear & Axle
    $2,371.36 - $2,371.36
    $2,371.36
    $2,371.36 - $2,371.36
    $2,371.36

    Yukon Gear Kits combine all the parts you need for your re-gear project. It delivers front and rear ring and pinion gear sets and the proper Yukon ...

    View full details
    $2,371.36 - $2,371.36
    $2,371.36
    $2,371.36 - $2,371.36
    $2,371.36
  • responsive-image responsive-image

    Yukon 10.5in GM 14 Bolt 4.56 Rear Ring & Pinion Install Kit

    Yukon Gear & Axle
    $1,078.76 - $1,078.76
    $1,078.76
    $1,078.76 - $1,078.76
    $1,078.76

    Yukon Gear Kits combine all the parts you need for your re-gear project. It delivers front and rear ring and pinion gear sets and the proper Yukon ...

    View full details
    $1,078.76 - $1,078.76
    $1,078.76
    $1,078.76 - $1,078.76
    $1,078.76
  • responsive-image responsive-image

    Yukon 10.5in GM 14 Bolt 3.73 Rear Ring & Pinion Install Kit 30 Spline Positraction

    Yukon Gear & Axle
    $2,371.36 - $2,371.36
    $2,371.36
    $2,371.36 - $2,371.36
    $2,371.36

    Yukon Gear Kits combine all the parts you need for your re-gear project. It delivers front and rear ring and pinion gear sets and the proper Yukon ...

    View full details
    $2,371.36 - $2,371.36
    $2,371.36
    $2,371.36 - $2,371.36
    $2,371.36
  • responsive-image responsive-image

    Yukon 10.5in GM 14 Bolt 3.73 Rear Ring & Pinion Install Kit

    Yukon Gear & Axle
    $1,073.89 - $1,073.89
    $1,073.89
    $1,073.89 - $1,073.89
    $1,073.89

    Yukon Gear Kits combine all the parts you need for your re-gear project. It delivers front and rear ring and pinion gear sets and the proper Yukon ...

    View full details
    $1,073.89 - $1,073.89
    $1,073.89
    $1,073.89 - $1,073.89
    $1,073.89
  • responsive-image responsive-image

    USA Standard Ring & Pinion Thick Gear Set For 10.5in GM 14 Bolt Truck in a 5.38 Ratio

    Yukon Gear & Axle
    $484.87 - $484.87
    $484.87
    $484.87 - $484.87
    $484.87

    USA Standard Gear ring and pinion sets are designed to exceed OEM specification. All sets receive rigorous in-house quality evaluation to ensure pr...

    View full details
    $484.87 - $484.87
    $484.87
    $484.87 - $484.87
    $484.87
  • responsive-image responsive-image

    USA Standard Ring & Pinion Thick Gear Set For 10.5in GM 14 Bolt Truck in a 5.13 Ratio

    Yukon Gear & Axle
    $522.88 - $522.88
    $522.88
    $522.88 - $522.88
    $522.88

    USA Standard Gear ring and pinion sets are designed to exceed OEM specification. All sets receive rigorous in-house quality evaluation to ensure pr...

    View full details
    $522.88 - $522.88
    $522.88
    $522.88 - $522.88
    $522.88
  • responsive-image responsive-image

    USA Standard Ring & Pinion Thick Gear Set For 10.5in GM 14 Bolt Truck in a 4.88 Ratio

    Yukon Gear & Axle
    $457.12 - $457.12
    $457.12
    $457.12 - $457.12
    $457.12

    USA Standard Gear ring and pinion sets are designed to exceed OEM specification. All sets receive rigorous in-house quality evaluation to ensure pr...

    View full details
    $457.12 - $457.12
    $457.12
    $457.12 - $457.12
    $457.12
  • responsive-image responsive-image

    USA Standard Ring & Pinion Gear Set For GM 9.25in IFS Reverse Rotation in a 5.38 Ratio

    Yukon Gear & Axle
    $343.07 - $343.07
    $343.07
    $343.07 - $343.07
    $343.07

    USA Standard Gear ring and pinion sets are designed to exceed OEM specification. All sets receive rigorous in-house quality evaluation to ensure pr...

    View full details
    $343.07 - $343.07
    $343.07
    $343.07 - $343.07
    $343.07
  • responsive-image responsive-image

    USA Standard Ring & Pinion Thick Gear Set For 10.5in GM 14 Bolt Truck in a 4.56 Ratio

    Yukon Gear & Axle
    $540.35 - $540.35
    $540.35
    $540.35 - $540.35
    $540.35

    USA Standard Gear ring and pinion sets are designed to exceed OEM specification. All sets receive rigorous in-house quality evaluation to ensure pr...

    View full details
    $540.35 - $540.35
    $540.35
    $540.35 - $540.35
    $540.35
  • responsive-image responsive-image

    USA Standard Ring & Pinion Gear Set For GM 9.25in IFS Reverse Rotation in a 5.13 Ratio

    Yukon Gear & Axle
    $343.07 - $343.07
    $343.07
    $343.07 - $343.07
    $343.07

    USA Standard Gear ring and pinion sets are designed to exceed OEM specification. All sets receive rigorous in-house quality evaluation to ensure pr...

    View full details
    $343.07 - $343.07
    $343.07
    $343.07 - $343.07
    $343.07
  • responsive-image responsive-image

    USA Standard Ring & Pinion Gear Set For GM 9.25in IFS Reverse Rotation in a 4.56 Ratio

    Yukon Gear & Axle
    $343.07 - $343.07
    $343.07
    $343.07 - $343.07
    $343.07

    USA Standard Gear ring and pinion sets are designed to exceed OEM specification. All sets receive rigorous in-house quality evaluation to ensure pr...

    View full details
    $343.07 - $343.07
    $343.07
    $343.07 - $343.07
    $343.07

The LLY Duramax powered 2004.5 to 2005 Chevy Silverado HD and GMC Sierra HD trucks. It was the first Duramax with a variable geometry turbo and EGR, which helps it spool faster than the LB7.

Shop LLY Duramax Parts by Category

Not sure what fits? Send us your VIN or call 865.640.2097 and we will match the right part.

LLY Duramax FAQ

What is different about the LLY versus the LB7?

The LLY added a variable geometry turbo and EGR for faster spool and lower emissions.

Are LLY trucks known for overheating?

Some early LLY trucks ran hotter under load. Upgraded cooling parts are a common fix for trucks that tow heavy.

Powerhouse Diesel