Broncos and F150s are rotting in wrecking yards and long since been crushed and made into Toyotas, all the while Jeeps and dana axles have been built and rebuilt and are still working just fine.
Broncos aside, F150s are TRUCKS. People bought these things for work, hauling, and other tasks that kill vehicles. Yes, there are a lot of them in the bone yard but thats because of the shear numbers in witch they were built. Not to mention that there are still thousands of these vehicles still on the road so there is still a high demand for the good parts on these trucks. To be fair, there are hoards of Jeeps in the yards due to the volume of witch they were built and the demand for thier parts due to the thousands still on the road.
On the Broncos, the 1st gen(66-77) parts are highly sought after;
Jeepers; (axles, near Jeep width D44 front, 9" rear and manual trannys,(T18)
Racers; (rear 9")
1st gen Bronco lovers; everything else.
Only Jeepers, largely, are the only ones looking for jeep parts.
The 2nd gen Broncos(78-79 and F150s are sought after for thier axles,( HP D44 fronts 9" rear)manual transmisons(T18, NP435)/T cases(NP205) by a lot of wheelers no mater what they drive.
The 3rd gen broncos....these are junk and belong in the yard.
Jeeps and dana axles have been built and rebuilt and are still working just fine.
SD, Jeeps are built and rebuilt because they are cool and capable in a way no other vehicle is, witch is why you you don't see many "universal" type jeeps in the bone yard. When you do see them they are striped clean in a mater of days adding to this testament.
Dana axles(not all) are built and rebuilt cause there' well desiged. (for the most part) But lets face it, there aren't a lot of strong Jeep width alternatives that aren't custom axles out there, instantly making Jeep Danas a good reliable axle.
Again on the 9", the sky is the limit on where one could go w/it. Yes, the pinion stem is smaller, but you can upgrade to a larger pinion stem and larger pinion support/bearings if you are woried about strength. Is the 9" for everyone?
NO. Is it a viable choice for an upgrade in a well thought out application? YES.
"If you can't learn to do something well, learn to enjoy doing it poorly".
85 22RE, 5spd 4Runner project
87 Turbo Truck, Boost Controller, otherwise stock... for now.
86 Turbo 4Runner, Project