Could use somehelp. My original transmission went out couple years ago, finally got a used transmission, installed it last May. In July I started having a unusual issue, it does not do it all the time only randomly. Sometimes when I put it in drive it will not do anything, when I put it in second then take off I then shift to drive it does fine.Shifts up an down shifts all good. Ohm'd the solenoids check out good. I talked with a few mechanics said it could be the valve body gaskets. Any advice would be great. Other than that, it runs great, drive it everywhere.