273 Commando - UTG

dart4forte said
I have a copy of the NHRA notice allowing the 8.75 in Junior Stock. I can’t remember if it’s dated. If dated that would give one an idea of about when the factory started putting them in 4 speed cars. As far as the cars that got warranty replacements the shop invoice would probably the only proof.
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To me, the availability of an 8 3/4 only confirms when they started making them and could be dealer installed, not when they were a factory option. I'd like to see some official paperwork (like and order sheet) where that option was actually included in a factory build.