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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.
  • Post your favorite Diesel Parts to our facebook for a chance to win a $250 Gift Card! No purchace necessary. Post your favorite Diesel Parts to our facebook for a chance to win a $250 Gift Card! No purchace necessary.
  • 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.
  • We offer Paypal, Elayaway,Google Checkout, Visa, MasterCard, American Express, Discover, Cash, Check by mail and Google Checkout as payment methods. We offer Paypal, Elayaway,Google Checkout, Visa, MasterCard, American Express, Discover, Cash, Check by mail and Google Checkout as payment methods.
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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
2004.5-05 GM Duramax Diesel Truck.
You need to choose between 2WD or 4WD
Only Manual transmission is available

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


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 
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