OK, thanks guys. I have emailed SMR, waiting to hear back from them. Thanks for the tips guys. SO, what you are saying, is, even before 98, there were TWO different 518's? A 2 pin and a 3 on the side of the tranny I need to look for, a pin (lockup non lockup)??? Is there a harness serial/part number to help identify? What about applications? And, SMR would probaly know this info as well, or even have a tranny ready to go, or do I need to supply the core????? Thanks guys for ALL of the info. I am still going to look into the AOD, as I am told, the AODE is the computer controlled tranny, and the AOD is just a plain old OD tranny, no computer. Keep the info coming guys!!