Product Description
Michigan Motorsports GM Style Transmission Harness for MSD Atomic Controller
Fits 4L60E 4L65E 4L70E 4L75E 4L80E 4L85E GM 4-Speed Automatic Transmissions | Replaces MSD #2770
Connect your MSD Atomic transmission controller to a GM 4-speed automatic transmission with this GM Style Transmission Harness. Designed for use with the MSD Atomic transmission control module, this harness is built to control late model GM electronic automatic transmissions including 4L60E, 4L65E, 4L75E, 4L80E, and 4L85E applications. It also fits 2006-2008 4L70E transmissions. The harness includes vehicle speed sensor adapters for both early 1989-1993 and later 1993+ style speed sensors, making it a strong solution for swaps, transmission conversions, standalone controller installs, and custom drivetrain builds. Finished with high-quality braided wire protection sleeving and heat-shrink ends, this harness gives builders a clean, durable, and professional wiring solution while replacing MSD #2770.
Key Features & Benefits
- Designed for MSD Atomic Transmission Control: This GM style transmission harness is made for use with the MSD Atomic transmission control module, allowing the controller to operate compatible GM electronic 4-speed automatic transmissions. It is a key wiring component for standalone transmission control setups.
- Broad GM 4-Speed Automatic Coverage: Fits all years of 4L60E, 4L65E, 4L75E, 4L80E, and 4L85E transmissions, plus 2006-2008 4L70E applications. This makes it a versatile harness for LS swaps, hot rods, street cars, truck builds, and performance transmission conversions.
- Includes Speed Sensor Adapters: Vehicle speed sensor adapters are included for both early 1989-1993 and later 1993+ style speed sensors. This helps reduce compatibility headaches when working with different GM transmission years, sensor styles, and swap combinations.
- Clean Protected Harness Construction: High-quality braided wire protection sleeving with heat-shrink ends helps protect the wiring from abrasion, routing wear, and general under-vehicle exposure. This creates a cleaner, more durable installation compared to loose or unprotected wiring.
- Ideal for Swaps & Standalone Transmission Builds: Perfect for builders installing an MSD Atomic transmission controller in LS swaps, classic car conversions, custom trucks, race cars, and street performance projects. This harness helps simplify the wiring side of controlling a late model GM automatic transmission.
Notes
- Application: GM style transmission harness for use with MSD Atomic transmission controller.
- Replaces: MSD #2770.
- Transmission Compatibility: Fits all years of 4L60E, 4L65E, 4L75E, 4L80E, and 4L85E transmissions.
- 4L70E Compatibility: Fits 4L70E transmissions from 2006-2008 only.
- Included Adapters: Includes vehicle speed sensor adapters for early 1989-1993 and later 1993+ style speed sensors.
- Wire Protection: Includes braided wire protection sleeving with heat-shrink ends.
Key Fitments
- GM 4L60E transmission applications
- GM 4L65E transmission applications
- GM 4L75E transmission applications
- GM 4L80E transmission applications
- GM 4L85E transmission applications
- 2006-2008 GM 4L70E transmission applications
- MSD Atomic transmission controller applications
- GM electronic 4-speed automatic transmission swap applications
- Fitment note: 4L70E fitment is limited to 2006-2008 models.
