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  • Most orders over 200 automatically qualify for Free shipping Most orders over $200 automatically qualify for Free shipping.
  • Add a picture of your truck to our facebook and you could get your truck in Diesel Power Magazine! No purchace necessary. Add a picture of your truck to our facebook and you could get your truck in Diesel Power Magazine! No purchace necessary.
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  • Free Next Day Shipping on ALL Tuners!!! <h1><span xmlns="https://www.w3.org/1999/xhtml">YOUR #1 SOURCE FOR #2 POWER!!</span></h1> <span xmlns="https://www.w3.org/1999/xhtml"> </span> Whenever you purchase a tuner from Diesel Power Products, we send it our via next day air. There is nothing else for you to do. Give us a call if you have any questions. Free Next Day Shipping on ALL Tuners!!!

    YOUR #1 SOURCE FOR #2 POWER!!
  • Add a picture of your truck to our facebook and you could get your truck in Diesel Power Magazine! No purchace necessary. Add a picture of your truck to our facebook and you could get your truck in Diesel Power Magazine! No purchace necessary.
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Gear Vendors
  are the very best Underdrive/Overdrive on the market! We personally use it on our 2007 Cummins Diesel Ram

Below are the Gear Vendors for the
2001-04 GM Duramax Diesel Truck.
You need to choose between 2WD or 4WD
and Automatic or Manual transmission

If you have any questions about Gear Vendors please call us @
866.379.8685 or Email US


Gear Vendors 2WD 1993-02 GM/Chevy Silverado Sierra 4L60E 4-Speed Automatic 3D4L60
Gear Vendors 2WD 1993-02 GM/Chevy Silverado Sierra 4L60E 4-Speed Automatic 3D4L60
DPP Price: $2,895.00 
SKU: GV-
Gear Vendors 2WD 1993-02 GM/Chevy Silverado Sierra 4L80E 4-Speed Automatic 3D4L80
Gear Vendors 2WD 1993-02 GM/Chevy Silverado Sierra 4L80E 4-Speed Automatic 3D4L80
DPP Price: $2,995.00 
SKU: GV-3D4L80
Gear Vendors 4WD 1994-02 GM/Chevy Silverado Sierra BW4401/ 1370/ NP241 Transfer Case Manual Transmission 3D4401
Gear Vendors 2WD 1993-07 GM/Chevy Silverado Sierra Manual Transmission 3D4501C
DPP Price: $2,995.00 
SKU: GV-3D4501C
Gear Vendors 4WD 1988-02 GM/Chevy Silverado Sierra BW4401/ 1370/ NP241 Transfer Case Manual Transmission 3D1370C
Gear Vendors 4WD 1988-02 GM/Chevy Silverado Sierra BW4401/ 1370/ NP241 Transfer Case Manual Transmission 3D1370C
DPP Price: $2,995.00 
SKU: GV-
Gear Vendors 4WD 1994-02 GM/Chevy Silverado Sierra BW4401 Transfer Case 4-Speed Automatic 3D4401
Gear Vendors 4WD 1994-02 GM/Chevy BW4401 Automatic 3D4401
DPP Price: $2,995.00 
SKU: GV-3D4401
Gear Vendors 4WD 1994-02 GM/Chevy Silverado Sierra NP241/243 Transfer Case 4-Speed Automatic 3D0245
Gear Vendors 4WD 1994-02 GM/Chevy NP241/243 Automatic
DPP Price: $2,995.00 
SKU: GV-3D0245
Gear Vendors 4WD 2001-07 GM/Chevy Silverado Sierra NP261 Transfer Case Manual Transmission 3D0261
Gear Vendors 4WD 2001-07 GM/Chevy Silverado Sierra NP261 Transfer Case Manual Transmission 3D0261
DPP Price: $3,395.00 
SKU: GV-