Are you still full time 4wd? The full time trucks had drive flanges held on with 8 bolts, part time had external lockouts held on with 8 bolts prior to about 1990. The bolts like to loosen and that causes the parts failure. Replace the bolts with studs and nuts wit lock washers. Check tightness from time to time.
1990 and up used internal mount lockouts which don't have the same maintainence requirements.

Either will be fine for your truck.