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All kits made from High-Quality USA Aluminum and Steel. Proudly manufactured in the U.S.A.!
American flag displayed prominently, symbolizing patriotism and national pride.


All kits made from High-Quality USA Aluminum and Steel. Proudly manufactured in the U.S.A.!
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 Logo featuring speed gems transmission adapters, showcasing innovative design and performance enhancements for automotive applications.
Call / Text 763-767-4480
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Close
  • Home
  • Shop
    • Sidewalk Sale
    • Speed Gems
      • Accessories
      • Bellhousing Adapter Plates
      • American Motors (AMC)
      • Buick
      • Cadillac
      • Chevy
      • Dodge
      • Ecotec
      • Ferrari/Maserati
      • Ford
      • GMC
      • Hudson
      • Kaiser Willys
      • LaFrance
      • Lincoln-Mercury/Edsel
      • Mercedes
      • MG & Metropolitan
      • Oldsmobile
      • Packard
      • Pontiac
      • Studebaker
      • Volkswagen
    • Wilcap
      • Wilcap Website
      • Cadillac
      • Chevy
      • Chrysler
      • Dodge
      • Early Hemi
      • Ford
      • Hudson
      • Lincoln
      • Mopar
      • Pontiac
    • Replacement Parts
      • Adapter Plates
      • Bellhousings
      • Flexplates
      • Flywheels
      • Starters
    • Apparel
  • About
    • Our Story
    • Testimonials
    • Gallery
    • Features
    • Kit Installations
    • Projects
      • Our Projects
      • Customer Projects
  • Blog
  • Contact
    • Contact Speed Gems
    • Return Policy
      • Return/Refund Policy - Standard Orders
      • Return Policy - Drop Ship Orders
    • Privacy Policy
    • Shipping Policy

Contact Us

Speed Gems

806H S Division Street

Waunakee, WI 53597


Phone: +1(763) 767-4480

Email: sales@transmissionadapters.com

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