87 3/4 axles on a 70

[JimmyFloyd]

Ok, I am looking at some options for axles on my blazer. Currently have 3:73 open-diff 6 lug. Disc front, drum rear

I also have a 3/4 ton 70 suburban, with D44 front and HO52 No-Spin 8 lug. Not sure on gear, but it is an auto, so it's probably 4:10. both are drums


There is also an 87 High Sierra 2500 here in the junkyard, with what looks to be a 14ff and a D44 front. Unsure of the gears. Disc front, drum rear.

Also, another option would be there is a guy locally with a D60 from a 99 Dodge van with trac-loc and 4:10 gears. drum brakes

What would be the best direction to go with this. I don't plan on getting into serious wheeling, but I may take it off road occasionally (depending on if I can find places to go)

Would I be able to use the D60 and my suburban D44 front? The cost of this is higher due to the purchase of the D60, and converting the D44 to Disc.

Right now I am leaning towards the High Sierra axles, but what should I look out for with these? How can I tell if it is a locker if there is no RPO code list?

Thanks.