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Old 05-15-2013, 06:45 PM   #1
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PORTAL AXLES.. Are they worth it?

Hey everyone, so I am looking to do an axle swap and I have been trying to do some research on different options and came across "Portal axles". I am wondering if anyone on here has done them in there TJ and if they are even worth looking at..

I have found a set of them from a Volvo c303 1 1/4 TON Military vehicle for 3000$.. I know it will take a TON of work to get them in and going so is it worth it?

Here is a picture from what I found online.

[IMG][/IMG]

[IMG][/IMG]

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Old 05-15-2013, 06:47 PM   #2
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Here is a shot of the rear..

[IMG][/IMG]

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Old 05-15-2013, 08:38 PM   #3
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I have definitely drooled over portal jeeps... awesome way to gain a couple inches axle clearance with a smaller pumpkin too.
But I am assuming it is a lot of work and money to custom fit them and make them work right.
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Old 05-15-2013, 08:46 PM   #4
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Originally Posted by K.wag View Post
I have definitely drooled over portal jeeps... awesome way to gain a couple inches axle clearance with a smaller pumpkin too.
But I am assuming it is a lot of work and money to custom fit them and make them work right.
Yeah, tons of money im sure.. but the guy who has this one says its about 4-5 inches more of clearance, which is pretty great. 3,000 for the pair and another 3,000 to fit and get them in most likely.
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Old 05-15-2013, 09:03 PM   #5
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How much do they weigh?
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Old 05-15-2013, 09:06 PM   #6
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How much do they weigh?
I'm not sure. Sorry.
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Old 05-15-2013, 09:42 PM   #7
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That seems to me a very important detail in your decision if this is a commuter/drive to trail rig.
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Old 05-15-2013, 09:48 PM   #8
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I wouldn't run portals if they were given to me for free. Don't get enamored by the clearance. The reduction gears in the portals are a weak link and the axle puts a massive stress on your suspension links.
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Old 05-15-2013, 11:03 PM   #9
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3,000 to fit and get them in most likely.
That is what I have seen in brief research
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How much do they weigh?
More but not significantly more. Gearing is at the hub yes, but the center differential is also smaller. Nothing like 100% more or anything like that. The commuting issue is more about the function of the portals than the weight. Portals are not great for highways.
Quote:
The reduction gears in the portals are a weak link and the axle puts a massive stress on your suspension links.
Can't be too weak or the military wouldn't use it in H1's.
and the stress on the suspension links is part of that $3k in extras to get them installed correctly.
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Old 05-15-2013, 11:26 PM   #10
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Sorry...cant see $6+ grand is those to get them to work...Did you notice the passenger side diff and the offset rear? You're talking tons of drivetrain mods/replacements to make them work.
If you're wanting to replace your axles, I think you'd be better off spending the $$ on something like a Currie F9 with a Tru Hi-9 thirds or RockJock 60s. Total cost may...may mind you, be a little more but at least they fit, they work, and are virtually bulletproof for 99% of us.
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Old 05-16-2013, 12:03 AM   #11
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Sorry...cant see $6+ grand is those to get them to work...Did you notice the passenger side diff and the offset rear? You're talking tons of drivetrain mods/replacements to make them work.
If you're wanting to replace your axles, I think you'd be better off spending the $$ on something like a Currie F9 with a Tru Hi-9 thirds or RockJock 60s. Total cost may...may mind you, be a little more but at least they fit, they work, and are virtually bulletproof for 99% of us.
I think it would be a cool build, and for changing the driveline. I had to do that on my Dana 44/ford 9" swap on my '97 SE. if your going to swap in new axles you better expect to dish out 5 Grand minimum.
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Old 05-16-2013, 07:58 AM   #12
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Originally Posted by K.wag View Post
That is what I have seen in brief research

More but not significantly more. Gearing is at the hub yes, but the center differential is also smaller. Nothing like 100% more or anything like that. The commuting issue is more about the function of the portals than the weight. Portals are not great for highways.

Can't be too weak or the military wouldn't use it in H1's.
and the stress on the suspension links is part of that $3k in extras to get them installed correctly.
Humvees don't use portal axles, they use independent suspension.
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Old 05-16-2013, 08:20 AM   #13
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OP, i strongly doubt you would be able to put those under your jeep for 3 grand. if you were to do everything yourself, then maybe you might come close to that. but if you have to have some one install them, you are talking serious money.

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Humvees don't use portal axles, they use independent suspension.
they have both.
the H1 has a portal hub
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Old 05-16-2013, 08:28 AM   #14
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Humvees don't use portal axles, they use independent suspension.

They typically refer to them as geared hubs, but they are for all intents and purposes a portal due to the half shaft driving a reduction gear connected to the drive hub giving much higher clearance under the rig.
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Old 05-16-2013, 08:36 AM   #15
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OP, i strongly doubt you would be able to put those under your jeep for 3 grand. if you were to do everything yourself, then maybe you might come close to that. but if you have to have some one install them, you are talking serious money.



they have both.
the H1 has a portal hub
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They typically refer to them as geared hubs, but they are for all intents and purposes a portal due to the half shaft driving a reduction gear connected to the drive hub giving much higher clearance under the rig.
See? I learned something today. I stand corrected.
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Old 05-16-2013, 08:38 AM   #16
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they have both.
the H1 has a portal hub
bingo. AMC20 center sections with portals in the IFS/IRS. 2.73-3.08 axle ratios w/ 1.92 gear reduction from the portals.

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Originally Posted by DANGItsVictor View Post
I have found a set of them from a Volvo c303 1 1/4 TON Military vehicle for 3000$.. I know it will take a TON of work to get them in and going so is it worth it?
looks like they're offset the wrong way. mid-passenger side drop on both sides. will certainly introduce some issues with driveline, suspension and exhaust.
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Old 05-16-2013, 10:10 AM   #17
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See? I learned something today. I stand corrected.
We both did. I've always referred to them as portals because a lot of the comp guys have built axles around them and they are the "strength" standard for the smaller stuff that Volvo and others get compared to.

It wasn't until I went looking for an image of a Hummer Portal that I saw them referred to as geared hubs.
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Old 05-16-2013, 10:23 AM   #18
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I had to look that one up to. And the military is no standard for reliability...
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Old 05-16-2013, 04:28 PM   #19
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Unimog axles are decently beefy, but would take mega $$ to make work in a Jeep of any kind.
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Old 05-16-2013, 04:49 PM   #20
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If you were doing overland stuff, I think they'd be great because of the increased clearance. I don't know how well they'd hold up to rock crawling, though.

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