Ain’t no feeling like Oldsmobling!
I’m building a 4L80, this came out of a plow truck, and more snow is on the way. I ordered a TransGo shift kit, I got the small shift correction kit, without the spacer plate to dual feed. The guy is in a hurry to get it back, its his money maker. I have never done a dual feed on a 4L80, other than blocking the hole in the case and omitting the direct clutch center seal, is there anything else? I seem to recall reading that a couple checkballs need to be left out. Thanks!!