Designed for GM 4L60E/4L65E/4L70E/4L80E/4L85E street performance & towing applications, the Shift Boss Transmission Programmer is designed to ensure desired shift firmness while also monitoring the two most critical drivetrain functions – temperature and transmission line pressure (requires upgraded kit #377560).
- Monitor transmission line pressure (#377560 only) & temperature while adjusting shift firmness
- Features three shift mode options: Stock for OEM shift characteristics; Stage 1 for firm, solid shifts; & Stage 2 for race shifts
- Easy-to-use & read hand-held unit with digital screen
- Powerful data logging & self diagnostics capabilities