[Macstunnah]

Well where do i start. I just bought my 1986 commanche 4x4. It was purchased from WV and i live in PA and well after about the 1 1/2 drive i realized the tranny was slipping horribly and well it started grinding hardcore and then it wouldnt let me go about 6 feet before disengaging the gear and just letting me coast to a stop just to go another 5 feet lol. So i am wondering if i go and get a tranny filter and some fresh tranny oil will it run better ?

Here is some info on it..

Miles - 66,000
Year - 1986
engine - 2.8L Straight 6
Transmission - Automatic

Also the fluid in the truck currently is black as night. And smells quite not so pleasant..

ANY HELP IS APPRECIATED, I am new to jeeps and love the comanche but its looking bleak in less than 24 hrs.