weird issue with my truck started a couple weeks ago where it no longer shifts into overdrive. Drove it to work without issue but when I got on the highway to go home it just would not go into 4th/OD. It also hangs shifting into 3rd under heavy throttle. I did the vette servos probably 3 years...

I am a new member to the forum, but I have spent the past month reading every thread the search engine on the forum would offer in regards to my problem. First some background. About 2 months ago I purchased a used 07 Canyon Z71 Crew Cab. The truck had been totaled in an accident (I believe...