Dana axles were an option on some Suburbans, my 59 Chevy for instance. They were not 44's, however, but a really oddball special number that was unique to Burbs. Mine swallowed a pinion gear after I changed a seal, and didn't get the pinion nut torqued properly. After I was unsuccessful at finding a stock replacement, I swapped in a 3/4 ton Dana 60 out of a later-model GMC.
Jerry


"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!