hello i have a problem with trans yesterday morning going to work the think just quit pulling in drive lost all gears stuck on side of the road but when i put it in 4 wheel drive it will pull or drive i know the transfer case was going bad because it makes a noise and pops when you put it in 4 wheel drive the truck won't hold in park anymore with engine off it rolls but it will hold when you leave 4 wheel in , you can't put it in 4 wheel unless engine is off then start it if engine is running it grinds when trying to put it in like something spinning is this the tranfer case finally going out or transmision becouse it was shifting great