M500 Dana 70HD and front axle to GM hub swap?

[1975Custom]

Dana 70HD is essentially a dana 80 with a 70 center from what I gather on 4x4 pages.


I have also found that GM Corporate 14 bolt hubs share the same spindle as the Dana 70HD.


Is this also true for my front axle if I use hubs of the same era?


The 5x8 lugs are cool but I can no longer get any wear parts like dics and drums.


I also can not get Alcoa wheels.


With a 8x6.5 lug pattern, I can get 20+" Alcoas, better tires, and disc conversion brakes.


Thanks for your help.

[Rickf1985]

See my reply in reference to Dave on your other post above but in reference to the Dana 80 and Dana 70 comparison I am not so sure about that. I have a Dana 80 in my Dodge dually and it is HUGE! It is much bigger than a 70 so I can't see where there is a comparison.

[1975Custom]

See my reply in reference to Dave on your other post above but in reference to the Dana 80 and Dana 70 comparison I am not so sure about that. I have a Dana 80 in my Dodge dually and it is HUGE! It is much bigger than a 70 so I can't see where there is a comparison.

I agree. The thing that the 70HD shares with the Dana 80 is that it uses 4" tubes instead of the standard 3.5" tubes on a regular Dana70.


Regardless, the spindle inserts are the same for all model 70.


Onward to finding axle shafts!