Description
If you’re running an Atomic Transmission Control Unit on a GM 4L60-85E or 4L70, you need a harness that delivers clean, reliable signal integrity between your TCU and transmission—any miscommunication costs you shift quality and consistency. This MSD harness eliminates guesswork with factory-correct connectors and routing, giving you the precise control your build demands. Whether you’re tuning a street car or commanding a race transmission, this is the foundation that keeps everything talking.
- Manufacturer: MSD
- Part Number: 2770
- Application: GM 4L60E, 4L65E, 4L80E, 4L85E, 4L70E, 4L75E
- Fitment: 1993 and up (4L70 2006-2009)
- Type: Transmission wiring harness
- TCU Compatibility: Atomic Control Unit
- Installation: Bolt-on harness
- Emissions Legal: Yes, racing approved
- Warranty: 1-year manufacturer limited
- UPC: 085132027705
