This is a used 4L60e transmission for 4 WD GM trucks. I bought it a while back and it turned out to be the wrong one for my truck. This one is the two piece  case made for 1998-E2000 trucks with a 5.7l gas engine. I was told it came out of a running vehicle.  It has the green electronic plug and the case for the shorter torque converter. It will fit other years with some minor changes. If you install it and it doesn't work right all I can do is give your money back. I wont cover your labor costs.I also have a good 4L60 E  out of my 1996 Suburban  4WD that has a cracked case that I would sell cheap for someone that can use it.