Curious how difficult it was swapping the trans out and how did you reprogram the ECM and TCM?A quick update! Problem fixed, I found that the TCM fuse in the engine compartment fuse box was blown. (no idea what caused that). After replacing the fuse the the hard shift into drive went away and driving the shifting was normal. Now to address the dark fluid issue, after 4 drain and flushes the fluid was still coming out very dark, fearing that the clutch disks were destroyed, I found a replacement transmission out of a 2011 at my local pick and pull for $90.00 installed it, reprogramed the ECM and TCM together and the car drives just fine.