My 1995 f150 5.8 4x4 is having shift issues the drive doesn’t work but 1st 2nd and reverse do fluid was low refilled it still didn’t work when it was low I smelled it and it didn’t smell burnt doesn’t shift hard or gears don’t grind what happened before I got it was the previous owner towed a trailer to heavy and after that wouldn’t go into drive fluid was low when they did it to o/d light isn’t flashing isn’t original transmission previous owner changed it not sure what miles it has linkage feels a little bit loose compared to a 2015 gmc but completely different manufacturer and year could it be something like the solenoid pack or the valve body also fluid isn’t leaking