Nothing wrong with running 33's on a D44. D60 is probably overkill and they can be expensive to pick up in some places compared to a 44.
Do you know what kind of suspension you want? Leafs? Coils? Radius Arms? Three link? etc. Or are you just going to see what you can find for axles and use which suspension best suits the axle and your budget?
If you're going through the trouble, try and find a High Pinion. The following link has tons of information on the D44:
http://77cj.littlekeylime.com/Dana44.htm
If you're going to have it narrowed you'll want to avoid the '78-79 Ford versions with the cast on C's for the radius arms and try and find a version that's already setup for leafs or coils or has the weld on C's.
Keep in mind that you may need to re-gear the axle to match your current gears. (Or re-gear your rear to match your front). You'll almost definitely need new wheels since I don't believe the D44 cam with 5 x 4.5 lug pattern. So you'll need to run an adapter in the back or get new rear axles if you want the front and rear bolt patterns to match.
Are you going to run a locker? You'll have to consider what kind you want, or might want in the future. If your happy with a lunch box style locker like a lock right or Aussie locker, it's pretty straight forward. If you ever plan on doing a full carrier like a Detroit or ARB, you might want to consider doing it all right from the beginning since you essentially will have to through the same process of re-gearing to install the locker.
Check out the SAS registry, there's tons of builds in there will lots of details of the things you'll have to watch out for.
If you can find a complete axle I recommend the following as part of the rebuild:
- new u-joints, rotors, pads and seals
And then the others you want to look and replace as needed are:
- calipers (for some models these are super chear)
- axles axle shafts (depending on the age of the axle would you trust 30 year old axle shafts?
- bearings
- hubs
