Thread: An expedition truck on portals...

  1. #11
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    Apr 2008
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    How to get portals on my Jeeps of course!

    - 2001 Ford Expedition Eddie Bauer 5.4
    - 2001 Jeep Cherokee Sport 4.0
    - 2005 Starcraft 11RT
    - Some indeterminate race car project (between whips)
    - My other car is in pieces

  2. #12
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    Jan 2007
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    Color me jealous of your Russian trip!

    I remember people ditching on Mal's boxes when they came out which is a shame. These same types of folks were also destroying hybrid ford 9" / Mog portal box axles. I totally agree with you guys on the suitability of the LR axles. The portals seem to be more in their element in deep mud and actual terrain - not bound up in the rocks on someone's twisted idea of a course.

    I know there was some questions as to how well the maxi boxes would handle highway speeds - it looks as if there might be a tad more volume in Tibus' boxes for more gear oil. Are they completely sealed, though? Or is there a vent? Also, what is the ratio of the gear reduction at the box? what CV's are being fitted? Are there plans for a production run of them?

    Best of luck getting everything buttoned up and on the shakedown. Greatly looking forward to your trip report and/or article. Keep us apprised!

    cheers,
    -ike
    gas > mods

    D1 equal parts honkey tonk and slayer

    1977 Chrysler New Yorker Brougham. Factory Sure Grip 8.75 axle. 440 big block. 4 body trunk. Tikki torches, picnic blanket, martini kit. Discount coupon stickers to the Love Shop. Refurbished hood ornament.

  3. #13
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    Sep 2008
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    Revelstoke, BC
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    Umm......

    I looked at building some portal boxes a few years ago. With not having access to casting (cheaply) I was going to make the cases out of laminated laser cut steel plates. They'd be bolted & dowelled together then TIG welded inside to seal them up. Got costs on the gears to be cut & hardened but that killed the project and I couldn't find any suitable ones to make a 4 'gear box', plenty to do a 'volvo' style but you need to flip the diff then with the associated possible problems of oiling. I had already got the H/D fusible stub shaft CV's from Kam Diffs in my front axle so adding the box would have been quite easy as it'd only need a custom stub shaft making. The output shaft was going to be the origional Kam stubshaft into the origional LR drive flange carrier.

    One thing I did do was get (and fit) the axle stiffening kit from Tomcat Motorsport. It's a second tube that's welded inside the axle casing with end supports and strengthens the axle. It was designed for speed events where the LR based buggys take heavy landings after jumps. Worth thinking about and it's not that expensive and an easy fit, you can also weld on one of their heavy duty diff covers at the same time..... that's worth the effort alone.

    Maybe I might pull the drawings back out again..... wire EDM has made custom gears alot cheaper since I last looked at this.....

    Cheers,
    Andy

  4. #14
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    Man this fills my head full of ideas. I would love to keep my Rover axles and just "add" to them. I have no reason to go over 35" tires. That would be an upgrade for me as is. I will be following this.


    Also, is there an english website or should I find the online translator?
    '92 Range Rover

  5. #15
    Join Date
    Oct 2007
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    ...watch the news and ya'll know...
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    Okidoke,
    well then lets see if I can answer all your questions to your satisfaction.

    Jeeps: You can easily fit them to any Jeep! You can even fit them onto trucks without rigid axles :-) You gain 4.9" of lift without changing the suspension or anything else on your drivetrain, etc....

    16" Hutchinson or 16.5" H1 wheels are the smallest you can mount to give enough room for the Chevy disc brake that will be fitted.
    By changing the lower flange you can adapt any other bolt-pattern and could just as well drive a Toyota 18" wheel or a Land Rover rim.

    The gearing on these portals is 1,6:1 which takes just over 50% of the stress from your drivetrain.
    All shafts are made of 4340 Chromo.
    The boxes are fully sealed, as well as you can seal it, and regarding speed and strength, I asked for 120km/h on good road and 80km/h on pistes.
    At Tibusī they are building their 100" competition Defender with a 300+ bhp engine and I guess it will be beaten around the tracks of the next Dresden-Breslau!

    And why shouldnīt you be able to keep your Rover axles?
    I do keep mine. I am just using the Salisbury axles of my old 110SW and then they will be fitted under my new 130CC. No big deal :-)

    Oh, and regardin the production run: definitly YES! Currently there is one set still for sale from the first production run and as orders come in they want to produce more and more. You just have to tell them what car you want to fit them to and which wheels youīd like to run....rather simple isnīt it?

    I am curious as one can be to finally drive my Defender into the woods with these axles.....and sorry about the jealousy I inflicted with the trip to Russia, youīre welcome to join us :-)

  6. #16
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    Oct 2007
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    Quote Originally Posted by Funrover View Post
    Man this fills my head full of ideas. I would love to keep my Rover axles and just "add" to them. I have no reason to go over 35" tires. That would be an upgrade for me as is. I will be following this.


    Also, is there an english website or should I find the online translator?
    For now there sadly isnīt but there will be soon I guess.
    The lads are just working so hard on the portals and their new winches that there ainīt no time left for websites if you want to keep some family life.

    Shoot them an email with your questions though, they speak fluent english and always take a lot of time to answer and help.
    Last edited by Oilworker; 01-26-2010 at 04:33 PM.

  7. #17
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    Great, thanks!
    '92 Range Rover

  8. #18
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    Quote Originally Posted by Root Moose View Post
    How to get portals on my Jeeps of course!

    Just got this image for you, it shows the assembly to fit the drop box to a Jeep


    So long,

    Robert
    Last edited by Oilworker; 01-27-2010 at 02:42 PM.

  9. #19
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    Sep 2007
    Location
    Longmont CO
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    I like how the guys have made the mounting surface large enough to fit a variety of different applications! Smart..

    I'm saving my $$$'s
    Cheers!

    Keith
    04 Dodge 3500 4X4 CUMMINS POWERED!
    RT1 '97 Disco SD (on steroids) Sold
    RT2 '97 Disco XD (built to rock)
    RT110 '85 110 (Getting bigger, badder and better)
    '95 RRC LWB (Sadly it is sold )
    '67 S2a 109 SW (someday I'll finish it) Sold...

  10. #20
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    Dec 2005
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    Slightly unrelated but expo worthy, there was a AEV Brute owner on here that had a red one with portals. I don't remember his name but portals make sense if you know the terrain you are heading for. There was also a crawler built some years ago running toyota/ mog portal hybrids ohhhh the lust (sorry for hijack the BlueMoon is talking).

    Aaron

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