Interesting info.

[4.3CPI]

I found this on V8S10.org. Supposedly all 1st gen s series vehicles built for Mexico have Dana 44's in them for a rear axle.
http://v8s10.org/forum/viewtopic.php?t=12542

I'm not the poster of the article there.

 

[Rinkrat456]

Re: Interesting info.

I'd have to see it to believe it. However, if it came in a 5x4.75" pattern with disc brakes and 59" wide, I'd have to take a trip to Mehico just to find one.

 

[4.3CPI]

Re: Interesting info.

According to the summit catalog, dana 44's had an 8.5 inch ring gear. According to napa's online catalog, they list an 8.5 inch in a 1992 blazer T10 4wd. Here.
http://www.napaonline.com/masterpages/NOLMaster.aspx?PageId=430&CatId=8&SubCatId=4
I don't know if it's the same thing, but it's the only kind of info I could find about it. Dude said you'd have to go farther than the border, because USA cars get imported alot.
Maybe call up a NAPA with the PN, and ask if it's for a dana axle?
Even if they do exist, odds are you wouldn't find discs on it.