Hi folks, I'm currently installing a 440/727 combo in a custom project (58' Dodge). The drivetrain came out of a 73' Imperial that was running until a few months ago with no issues. When I hooked up the prop shaft I noticed that the tranny want turn in reverse direction ( engine not running) . Its locked the same way in reverse as its in park position, rotates fine in forward. I started the engine this weekend and fwd gir and park is normal ( wheel up from the floor). I had several issuse with the carb and ignition, so didnt run it too long and didnt shift to reverse, but I expect the engine to stall. Expect from park, it shall be possible to rotate the shaft freely both ways when engine not running if I havent missed anything. The combo has been install in the frame a few weeks and if I not remember wrong, I could rotate the tranny shaft both ways earlier and it suddenly change its mind all by itself. Any idea what the problem might be..? I change filter and oil in the weekend, old oil looks good.