no Adam, sounds like not quite the right one - there were other applications that could have different driveshaft configurations, like the 3/4 and 1T's, tho it still should be the same at the front, as it would bolt up to the same engines [GM 6 or 8] and bellhousing - with you having a 1/2T you may need to find one from a 1/2T, and they were common 47-59, somewhat less so 60 up, where they were more common on 3/4T
Bill