I'm "Goin' Oil Burner" by replacing the 7.4 Gen VI BBC with a "Complete" (Incl. Wiring Harness, etc.) '05 LLY into My '99 (11/98 build date) K3500 Dually and lookin' to keep the 4L80E...it'll make the change-over a lot easier, and I'm confidant the Transmission can be economically modified to...