So I have a 96 F350 7.3 with an E40D that I believe is going out. When I first start the truck and put it in reverse it bogs the engine down and yesterday I had it completely stall on me. While cold it also takes a bit longer than normal to go into drive but once I pull out on the road she runs and shifts fine. I'm fully expecting the trans to die and already have the money put away to replace it when that happens but I was reading some forums and was just curious about what the usual life span is on these transmissions. My truck has 340k on it and I believe the stock trans. Just looking for some info. Thanks