no such animal that I'm aware, but I'd be interested to hear what the seller thinks it is when you find out. maybe he just means "early in the model year"?? i find the vast majority of sellers out there, even if they've owned it for 40 years, don't know half the correct details of their own truck. and that's very understandable - back then it was just a another new truck - folks didn't drool over the trim levels (like I tend to on occasion...
) and you never used to hear "can you send me a pic of the SPID please?"