WILCAP ADAPTERS

SPEED GEMS Transmission Adapters are Proudly Produced IN THE U.S.A.! - Questions finding the right kit for your project? Call or email, we're here to help! While we do our best to ensure there are no design infringements on our products, there are always folks out there trying to reproduce what we make. To ensure you are receiving Speed Gems quality, please Order Direct from us. Thank you!... Speed Gems is a manufacturer and supplier of transmission adapters that allow the custom car builder to use a variety of engine and transmission combinations. These Kits are Proudly Produced in the U.S.A.!

Primary location: Waunakee United States