I poked through with a search here but couldn't find any updates on the axle specs. Is there more info out there I overlooked? Did I miss something?
No, I don't think you've missed anything. Its been hard (impossible?) to get axle specs.
Not too many folk here in the U.S. are familiar with Carraro axles, and we've been trying to get info, so we know how they stack-up to products that we
do know (Dana 44, Dana 60, etc.). From photos, we know that they are 6-lug axles, but it is hard to know exactly what that means in terms of axle rating. Here in North America, the Dana 60 and its equivalents from Ford, etc. (what we sometimes call "one-ton" axles), are all 8-lug, but maybe the Carraro has equivalent strength with 6 lugs? We don't know because we haven't gotten specs on them.
We
do know that the Carraro axles in the Grenadier are semi-float, not full-float axles (like the Dana 60). That seems like a major oversight by Ineos - given (1) the weight of the Grenadier (the gas-version is 5,875 pounds, and the diesel is over 6,000 pounds - almost as heavy as a Ford F250 in its lighter trims), (2) the excellent payload of the Grenadier (almost 2,000 pounds). and (3) the goal of durability and ease of field-maintenance. See these articles for a comparison of semi-float and full-float rear axles:
There are several basic axle varieties used in 4WDs, and each has some specific design pros and cons. There are front steering axles and rear fixed axles. Axle
www.motortrend.com
If you’ve looked into some of the big differences in vehicles, you may have come across the term “full floating axle”. But without further research, it’s hard to know what
weldingtroop.com
If I had to guess, I would guess that the Carraro axles are somewhere between a Dana 44 and a Dana 60 in terms of strength - but we don't know without seeing the specs. There is other info I think people would like to know, such as gear compatibility with known aftermarket products, compatibility with aftermarket lockers (ARB, etc.), are they high pinion or low pinion (usually you can tell from photos, but the photos I've seen don't seem definitive, but maybe someone else can chime-in here), etc.
I'm not suggesting the Carraro axles are bad axles, I'd just like to see some specs. As the vehicles are in production, this seems reasonable.
