I have a feeling the same people that swear 5.29's are junk are the same ones who are busting knuckles and steering arms with hydro assist. They take their lack of forethough to limit the ram's travel and blame the parts for the breakage.
Im anythingbut shy about the stupid pedal and I have yet to break a gearset. Just get quality and be done with it.
You could be right, I've heard it both ways and err on the side of caution and went with 4.88's on my 4Runner and 84 Truck, well and my 85 truck, um and my 86 extra-cab and of course still have my stock gears in my 80. I have seen that pinion and it is a little small and the ring is really big, so big that you must grind the notch to get it through. With the 4.88's you just need to spin it as you put it in the housing.