ATS Co-Pilot lockup Kit, GM, 01-05, 5 speed Allison 1000, 6.6L LB7/LLY Duramax. This box forces lockup based on vehicle speed. In some cases this will trigger a check engine light and in very rare cases it will inhibit reverse.
The Co-Pilot can be shut off for normal transmission operation. When the Co-Pilot is turned on the Co-Pilot will force lockup in 2nd gear under wide open throttle. Note: Intended for RACING APPLICATIONS only.