Gen1 Transmission Adapter

Billet Aluminum Transmission Adapter for ZF and Getrag Gearboxes

Upgrade your driveline with this precision-engineered billet aluminum adapter, designed to seamlessly connect your ZF 5, ZF 6, or Getrag M 6-speed transmission to a high-performance single piece driveshaft. Perfect for eliminating the problematic guibo and two-piece shaft and replacing it with a stronger, lighter single-piece driveshaft, especially when paired with our BMW differential adapter.

Precision-machined to strict tolerances, this adapter ensures a perfect fit and enhances overall driveline durability. Built to last, the 1350 U-joint offers superior durability compared to factory parts.

Compatible with transmissions commonly found in the E36, E46, E39, and various newer BMW models, this adapter is the perfect solution for enthusiasts seeking strength, reliability, and reduced rotational mass.

Fitment Options:

• Small (96mm Bolt Circle Spacing): Designed for E36, E46, Z3, and 6-cylinder E39 models equipped with ZF 5 or 6-speeds, or Getrag M 6-speed transmissions. Also compatible with B48-based 8HP50 transmissions.
• Large (105mm Bolt Circle Spacing with 14mm Fasteners): Ideal for E39 M5 transmissions.

Key Features:

• Ultra-Lightweight Design: Weighs only 11.5 ounces to minimize rotational mass and maximize performance.
• Precision Engineering: Dynamically balanced during the design phase for smooth and efficient operation.
• Complete Kit: Includes all necessary hardware for easy installation.
• Built for Performance: Works with SPICER 1350 U-joint (#3-2-119) or equivalent yokes for enhanced strength and longevity.

The items installed or applied to vehicles are intended strictly for off-road use only and track vehicles. These modifications may not comply with emissions, safety, or environmental regulations required for public road use under Environmental Regulatory Agency (ERA) laws. It is the sole responsibility of the vehicle owner or operator to ensure adherence to all applicable local, state, and federal regulations. Use on public roads may result in legal penalties or vehicle impoundment. Always verify compliance with local authorities before installation.

We get a large number of custom orders and requests everyday, so as a result it is not always possible for us to keep every item in stock at all times in our warehouse. If you require the item urgently please contact our sales team here to check the stock before you make your purchase.

If you're unsure whether a part will fit your vehicle, feel free to contact us here with your inquiry. Our helpful sales team will reach out to confirm if it's the right match for you.

We offer a flat-rate shipping fee across the continental United States. This excludes Alaska, Hawaii, and U.S. territories. For international orders, additional shipping costs will apply. Please contact us for a quote if you are outside the continental U.S.

Also, feel free to also contact us at ColoradoN5X@Gmail.Com for any other questions.

Not all items are covered by warranty. Items including warranty, will clearly state that there is warranty within the product description. Most of these items will be a standard 1-year warranty against manufacture defects. You, the customer, will be responsible for shipping and handling. We will fix/replace that item with a product that is in working condition if you meet the warranty criteria. Please note that you will be allowed ONLY 1 claim within the year for that product. ColoradoN5X is not responsible for any damage caused during the installation of our products.