LS Swap 18 - Fixing The Jeg's 4L70E

The "new" Jeg's transmission in Dylan's 1980 Camaro had weird symptoms: the controller reported the gear selected as Reverse in 3rd gear, and ERROR in 2nd and 1st. Worse, it felt like driving around with the emergency brake on. We fixed it - for free!

Useful Information On 2009+ 4L65E and 4L70E Transmissions:
Main Connector Pinout @2:11
Shifter Position Signal Encoding @1:34
IMS (Internal Mode Switch) Connector Pinout @5:28

Parts Involved:
Jeg's 555-603026 - 4L70E 2-wheel-drive transmission
MSD 2760 - Atomic transmission controller
MSD 2771 - Wiring harness for 2009+ 4L70E
GM 24235261 - Internal Mode Switch*

* May be obsolete. 24248867 may replace, but I haven't seen one.