Hey guys! Long time no chat. I have some interesting news. I was having all of these mysterious "transmission problems". I got so pissed that I swore it's going to the 'Ol junkyard. I left it alone for the last few months without the heart to put it down. I kept thinking about a friend who's my shop tech at work who said if the engine isn't running right, the tranny isn't going to either. I let that rattle around in the melon for a few and went out to start looking at the engine. I started it and just started touching wires, connections, pushing things, pulling etc. I grabbed the big harness across the front of the motor and the whole sound changed. I started looking at critical wires that were connected to it. I feel pretty foolish even writing this, but it shows you that a lot of the problems are right in front of you and look for the simple stuff first. Long story shorter, 4 out of 6 ignition coils wires were cracked. I went on Amazon and ordered pigtails for all 6, put them on and the truck is back!!! Running as strong as I've ever felt it.
It's crazy to me how this thing would just shift down to 5th going down the road at 20mph but nothing wrong with the tranny. I guess it does make sense since it was running on 2 cylinders!!
Thank you all for the help and efforts to get this beast back and rolling again. I appreciate the time you took to post to help me out. Next project is paint!!!
Thanks again!!