M77 Longhorns,
Lots of great info here already to confirm the identity of your truck. Not mention some sage advice from some of our very experienced members! For the best advice related to the topic of titles, registration, etc. please check this new
Tech Tips listing for guidance from our HQ.
Suggest further questions and conversations related to your truck would best be posted in either the
Big Bolts forum or one of the specific Tech Topic forums in
The Shop Area.
Questions not related to a specific Tech area are welcome here (suggest you start a new post please) so we can try and help figure out some answers as we can.
On to new conversations and questions!

Dan