Yes, Sorry, that does look like a letter "I"
I am also most likely wrong regarding that code being changed.
The preface and sequence number could have been put on at different places/times by GM?
No problem, i now see you have 26500 post and i got zilch and basically know nothing about it. i surely don't know what the tag stamping should look like.
Thanx.
lets try more photos.
truck 2
