Folks what is the correct Dana Spicer universal joint series or part number for the rear drive shaft of the KJ CRD (2006)?

I have been told at least two differing numbers on another forum: Series 1310 and 1330 (aka Part #s 5-785x and 5-790x). Those have different lengths.

Rockauto has a range of assorted unis listed for the KJ CRD:

http://www.rockauto.com/catalog/raframe ... de=1432225

So were different unis used in the KJ CRDs or are they all the same?