Rembrant Posted February 17, 2019 Share Posted February 17, 2019 Yes, I've see 4x4 Ford vans for decades, so that complexity isn't necessary. And the un-sprung weight would go through the roof. As for saving, I wonder how hard the parts would be to find? Looking through the links, I have some questions...lol. That V-Drive case looks to be a very simple drive. No big deal there, but, these things would be full time, full speed 4x4, right? And, based on Steve's comments above about each front diff each having a spool, wouldn't this thing bind up like crazy when turning? PS: I have no experience with 4x4 locked front diffs, so the above may be a stupid question. Link to comment Share on other sites More sharing options...
Steve83 Posted February 17, 2019 Share Posted February 17, 2019 ...these things would be full time, full speed 4x4, right?I don't think so - I think it's a part-time t-case, and I assume 2-speed....each front diff each having a spool...No, that's not what I said. The drives are just built that way. But the diff between the front drivelines is in the t-case, so it still steers like normal. That's described (poorly) in the link that Gary quoted. Link to comment Share on other sites More sharing options...
Gary Lewis Posted February 17, 2019 Share Posted February 17, 2019 ...these things would be full time, full speed 4x4, right?I don't think so - I think it's a part-time t-case, and I assume 2-speed....each front diff each having a spool...No, that's not what I said. The drives are just built that way. But the diff between the front drivelines is in the t-case, so it still steers like normal. That's described (poorly) in the link that Gary quoted. Yeah, "poorly" is being kind. I think a lawyer wrote what he thought he understood an engineer to say. (I have to be careful as my son, who is a member on here, is a lawyer and I've been accused of being an engineer.) Anyway, my understanding of it is like Steve's - it is a differential within a transfer case, so apportions power to the front wheels exactly the same as an F-Series front diff does. Link to comment Share on other sites More sharing options...
Steve83 Posted February 19, 2019 Share Posted February 19, 2019 I think a lawyer wrote what he thought he understood an engineer to say.It's actually written like a patent. One of my good friends from high school is an IP attorney, and when he lived in DC, I did a little research on a patent, which involves reading a BUNCH of them. So I think that description was copied from their patent. Link to comment Share on other sites More sharing options...
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