anything up to about '88 but it will likely be a corporate 10 bolt...most all after about '78 were 10 bolt...
the D44 is arguably slightly stronger, but if you're not going to bash on it, the 10 bolt is fine...all have disc brakes
everything from the knuckles out will interchange with the D44...the inner axle shafts will not fit...they are slightly larger on the D44
I just did this swap on my '70 K5 using a 10 bolt from an '87 Suburban.
I added the sway bay as well...most of the 80s models will have one.
