A body 8 3/4

Hi,

I have 3 complete, A-body, original rears (not cut down) ready to be installed with different bolt patters and cases. Thanks.
Looking for an 8 3/4 with 373 gears or close and the 4.5x5 bolt pattern. Could switch the gears, and carrier if necessary. But if you have a sure grip close to that gearing that would be awesome. Needs to be one that would bolt into a duster so I can use my qa1 kit