[Kestor]

After staring at it for a while, I think it's the distance from where the bearing seats to where the ring gear sits that is going to be the problem, maybe....
There's roughly a 0.1" difference between the two with the Auburn being shorter(face where the ring gear sits is 0.1" closer to the pinion)even though it is overall narrower.
I have the 542085 Auburn Gear carrier. There's a video, Don's cobra something on the ytube, he does use a different carrier. But from what I have found the one he uses and the one I have are interchangeable, supposedly. When he puts his Auburn carrier in his case he has quite a bit of play side to side. He also swapped ring and pinion to Dana 44 set.
I'll try to put a picture in of the measurements, but it won't let me post pictures right now