I have a 70K5 with D44 front with manual drums all the way around. I want to add disc brakes. I have a 88k5 that has a 10 bolt with discs. Whats better? Is the D44 stronger? One has 28 spline and the other has 30 spline.(I think) I have a 71 with Disc Brakes that I have all the parts to swap over? I dont have any plans for off road torture but I dont want to downgrade the strength of the axels either? I searched and found conflicting info on swaping drum to disc on the D44. See two pics in my member gallery.