When I see 9 inches dangling under the rear of a Mopar I just automatically assume the owner has gender identity issues.

if a 9 inch is dangling under something the gender should be easy to spot lol

I have shipped 70 housings via UPS to Dutchman and back, not much heavier than a 60 truck housing. So realistically it is a minor difference between a 70 built for a car...and a truck 60..and way more gear options than a 9"

maybe a car housing with 1/4" tubes, wont bent 3/8" or 1/2" tubes...unless you tweaked the casting...was the tubes welded all the way around the housing? Tim

Who sells a 3.50 pro gear for a 70? Who sells any ratio pro gear for a 70?
I need a spare 3.08 ring and pinion for my 70 in the Dodge diesel. Where can I get this?
I can easily buy either for a 9”...

I guess that you missed the part about 3.54 to 7.17. The 3.08 gears are for a 71, not a 70, they have different offset for the lower gear. I run Dana Spicer gears for everything, if it needs anything extra strength wise, I can get them cryo'd for about $150 no progear necessary with a 10.5" ring gear. You can get a bearing cap support cover, that is about it for aftermarket in a car if you worry about it. Tim

I think a narrow frame rail 4 link tube car, a stock frame B body and a rock crawler jeep all have different needs. There is no such thing as a universal best rear end.

But Moparts is Moparts and people love to have an opionion about stuff they have never done.

A new Dana 60 works nicely in a high torque, leaf spring equipped vehicle.

The lack of a back brace yields a clean installation around the spring perches, U-bolts and shocks.

Unlike a 9" rear where the tubes weld to a sheet metal center, Dana tubes insert 4" deep into a machined, cast housing. Because of this, a back brace is not AS important.

Most guys who complain of bent Dana 60 housings usually run stock, low grade tubing spot welded to the center without an additional weld around the diameter.

BTW, I'm having a batch of 3.23 Dana 60 gears produced. They will be in stock in a month.

3.0 series are 70U. 71 is a name someone invented because there is a dfference, but its not a corporate name. The “U” is for undercut. They bore the housing for clearance for the pinion teeth. The pinion is not offset. You can put a 3.54 gearset into a 70U. You can put a 3.08 in a standard 70 or 70HD if you clearance the casting for the pinion teeth.
Anyway, its a heavy truck rear end. You can never make it as strong or as light as a good 9”.
If you are stuck on putting an oversized ring and pinion in, you can do that with a 9” too...and they are pro gears with oversized pinion pins.
Just adding to the “here we go again” factor!😂