unimog axels?

[390JOE]

whats you thought on them.  because i have read other forum pages on them and did a good bit of research on them myself.  but the the one question that still puzzles me is do you still need the same horsepower output that you need for rocks or what?  the reason that im asking is that im considering  to save up the money and get a set.


if anybody has other questons about unimogs please feel free to ask it here.  it will not only help you but it will help others as well.

[mudslayer2008]

you don't need alot of horsepower if the gearing is right.

[390JOE]

i was kinda thinking like 404's, does anybody got an opinion on those.

[four_by_ken]

Unimog axels are just like any others when considering things like power, etc.  The final gear ratio is roughly the same as with Rockwells.  So, you would have to plan your drivetrain similiar to Rockwell axles.

The big benefit is the portal boxes that raise the dif.

The are very strong.  The portal box reduces the stresses that the axle shaft, ring and pinion see.

If you want REALLY strong... step up from the 404s to a set of 406s, 416s or U1000 and up.

They are either air or cable actuated lockers.

You need to do a pinion conversion to make them work with your truck.

If you get serious about buying... let me know.  I got my set of 406s from Germany when I was over there and made a niece German friend that deals in a lot of things.

The 404s will work for most people.  It just depends on what your final plans are. 

There are a lot of false rumors out there about Unimog axles.

Here is my set.

[four_by_ken]

i was kinda thinking like 404's, does anybody got an opinion on those.

What tires and motor will you be running?  What is your driving style and what locations?

[Fraser]

if you seen the bit in petersons 4wd and off road that had a crew cab chevy truggy on the front this is the thread behind it. runs the mog axles. U419? i think

http://pirate4x4.com/forum/showthread.php?t=594481&highlight=

[four_by_ken]

if you seen the bit in petersons 4wd and off road that had a crew cab chevy truggy on the front this is the thread behind it. runs the mog axles. U419? i think

http://pirate4x4.com/forum/showthread.php?t=594481&highlight=

Its a very nice build.  Guy died before he could finish it and volunteers completed it.

As always... Pirate4x4 has a lot of tech on the mogs.  Just be careful with the date when looking.  The older dates have a lot of bad information.

[390JOE]

i was kinda thinking like 404's, does anybody got an opinion on those.

What tires and motor will you be running?  What is your driving style and what locations?

well i was thinking like 40 hawgs 390fe and playing in the mud only, dont do the trail thing with my big truck.

[four_by_ken]

i was kinda thinking like 404's, does anybody got an opinion on those.

What tires and motor will you be running?  What is your driving style and what locations?

well i was thinking like 40 hawgs 390fe and playing in the mud only, dont do the trail thing with my big truck.

You should be fine with the 404s.  I might be able to get a set from Germany if you are interested.  But, it would make shipping a lot better if we could find another set to split the shipping.

[390JOE]

ok heres another question.  i am concerned about the rpm's.  running mogs will i be turning more or less?

[four_by_ken]

ok heres another question.  i am concerned about the rpm's.  running mogs will i be turning more or less?

You will be turning higher RPMS.  the 404s are a 7.xx something ratio.  Depending on your motor and trans... you may not need to run low range as much any more.

[390JOE]

ok that good because i never ran 4lo i always ran 4hi and 1st gear.  and the reason that i asked is that i fall under the theory of gotta have good tire speed.  also i know that the fe can run 5000-5500 all day.

[four_by_ken]

i would just go with rocks, but that is just me

The difference between the two types is huge.   Really hard to compare the two.

[dsJeep]

are unimog axles only available in a 7.xx gearing? or can you get them in a different gearing or change them?

been thinking about getting a set for the ground clearance...

[four_by_ken]

are unimog axles only available in a 7.xx gearing? or can you get them in a different gearing or change them?

been thinking about getting a set for the ground clearance...

I believe the 404s only have one gear option.  The 406s and some of the other larger ones had a couple different ratios.  The newer you go, the more likely of finding different ratios also.  but, the price sky rockets when you start to look at the newer stuff.

If someone things the differences in the Dana 44 are a pain in the ass... they are nothing to the Unimog differences.

Good luck finding someone that has an after market gear set for them. Luckily you wont break them unless you do it on purpose.  But, unfortunately that also doesn't allow you to change it.

[390JOE]

here is some info on the gear ratios for the 404 unimogs, and links.

http://www.unimogcentre.com/unimog404specs.html

Axle Ratios:
Ring and Pinion Ratio:    3.54
Hub Reduction Ratio:    2.13
Final Axle Ratio:    7.56

http://www.exaxt.ca/faq.asp

Unimog 404 axles come with one axle ratio: 7.56:1. 3.54:1 (either 25:7 or 39:11) is in the crown and pinion, 2.13:1 (32:15) is at the portal. What does that translate to? Without overdrive and 44? tires, expect to do roughly 4000rpm at 65 mph. If you have an overdrive, the RPM will drop accordingly. This is too much for some engines, but not all. And, it is possible to build a hybrid axle with a different center section (such as a Dana 44, Ford 9?, or Toyota). The Unimog selectable locker is lost, but if you are upgrading from existing axles, you may already have a locker that can be used. Please do not ask us about an alternate gear ratio. In our opinion, one cannot be designed without severely impacting the strength of the ring gear or requiring a significant redesign of the 3rd member.

http://www.rockymountainmoggers.com/gears.html

http://www.pirate4x4.com/forum/forumdisplay.php?f=28

[390JOE]

hey does anybody know if you can swap axle parts from a 416 with a 404?

[four_by_ken]

hey does anybody know if you can swap axle parts from a 416 with a 404?

No.  For sure.  totally different in sizes, etc in just about every aspect.

[390JOE]

sorry to dig this out from the ashes, but it has alot of good info about other axle choices besides rock or 2 1/2 ton jimmys