This harness connects MSD's Atomic Transmission Controller (TCM) to the Ford E40D automatic transmission, providing the plug-and-play wiring needed for the swap.
Specifications:
- Make: Ford
- Transmission Fitment: E40D (1989-1994)
- For Use With: MSD Atomic Transmission Controller (TCM)
- Warranty: Manufacturer's Limited 1-Year Warranty
- Part Number: 2776
FAQ
What transmissions does the MSD 2776 harness fit?
Ford E40D transmissions from 1989-1994 only.
What is this harness used for?
It connects the MSD Atomic Transmission Controller (TCM) to the E40D transmission.
Is this harness compatible with the 4R100 transmission?
No, this harness is specific to the E40D; MSD's PN 2774 harness covers the 4R100.

