I just installed mine last weekend, the new yolk is only 40 ft-lbs with red locktight. And i would assume, only guessing here, that the front yolk would be more like 200 ft-lbs. Only say that because pinion nuts are usualy torqued around that range. And that nut looks about the same size as front pinion nut.
I got away with not taking that apart. i just undid the snap ring holding the sproket, and it came right off.
Those dam snap rings are a pain in the butt, anyone else have a problem with them? The snap rings and the gasket maker was the hardest part.