Hi Srt6exy,
Okay, that changes things, but I do think that 8 ohms between PCM C4 P1 and TCM H is kind of high. Not sure which measurement falls into this, but if you have the SKREEM and PCM plugged in, you should measure ~60 ohms between the H and L pins on the unplugged TCM connector. If only the SKREEM or the PCM is plugged in, you should measure around ~120 ohms between the H and L pins on the unplugged TCM connector. (Negative Battery cable off, key out of the ignition.) Since you have the SKREEM out, measure between pins 1 and 2 on the module - it should read ~120 ohms. Also, since you have the TCM out, have you noticed any transmission fluid around the TCM or in the TCM module connector? (use a white cloth/tissue and wipe around there). Sometimes, which I think is pretty insane, the transmission connector leaks, and the fluid wicks up the cable to the module, shorting out the module.
-Jerry