Thank you so much for your help! Turns out autozone only has one cv axle listed for sale that "fits" according to their computer, but the inner bearing housing is only 3 inches travel.
Called a 4x4 cv axle specialist fabricator in n carolina, who were kind enough to look up their build specs amd stated that inner bearing outer element needed to have a 4 inch travel housing.
He gave me a correct part number from carquest:
Ncv82001 made by GSG.
Carquest/Advance website shows a picture, and sure enough, the inner housing is definitely an inch deeper than the ones on the eagle that popped out. Ordered the hopefully correct ones, and will verify when they arrive. I will post picturea of both side by side, as well as get the bad part number from autozone and post when they arrive. That way you guys won't have to go through this problem in the future as well.
Thanks!