Bart, I see how this would be helpful as you don't want steel on an aluminum with no separation barrier. But how can one determine the difference between the 1310 joints and the larger 1330 that many of the Exploders use? Can you just spot the size difference by bringing a 1310 to the boneyard with you? I know there are conversions but I'd rather avoid it of possible.'96 Explorer 4x2 AT specs a 269/369 rear u-joint which is a 1310-series.
My personal choice would be the following since it's a) non-greasable (no drilled lube passages to weaken joint) and b) coated caps for compatibility with aluminum driveshaft.
I guess if I go bone yard picking I'll have to figure out what years have the 1310 vs 1330. For now I have a few other things to eliminate.