[44th Miss Inf]

Very nice looking, and very seldon seen truck.
Check the harmonic balancer and front pulley for any deterioration. These pieces are the achilles heels of the 6.2/6.5 diesels.
GM parts can still be picked up for less than $200 for the pair (balancer and pulley), as I just purchased a set a few months ago.
Also check that the brace is on front of the starter.