Well, I thought I would leave an update. Looks like trannyman52 was on to something. The tranny codes said incorrect gear ratio for gears 3 & 4. They said something in the clutches wasn't working, so it needed a rebuild.
However, some might be interested to know that when I changed my Vehicle Speed Sensor, I had only a little trouble getting to it and changing it WITHOUT removing the exhaust Y-fixture or the side wheel mount. I just had to get the right size ratchet extension at the right angle between the tranny and the engine. Granted I am a small guy and was able to get my hands and arms where bigger guys may not, but I was able to change it out in about an hour.
Thanks for all the help.