I'm assuming (there is a typo) you are having your speedometer rebuilt.
Which begs the question of just what is being rebuilt / done?
I believe there were two versions of the speedometer, one using a 1:1 ratio and the other at 1:1.1 Others will have to chime in on which is found in what year(s) Pantera.
Be glad to help, but it is very unclear as to what "they" are asking for.
Larry
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