Bolt on portals for rovers

blkrover

blkrover

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Dec 10, 2005
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virginia
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anyone check our pirate recently, well some german guy aka Wolfgang just build bolt on portals for rover axels... He just put them on a Defender 130... here is the thread

http://www.pirate4x4.com/forum/showthread.php?t=865657

they are for sale at www.killeraxles.com

I'm interested to see how well they hold up especially with 35's-37's, he's running stock suspension and what looks like to be about a 35 inch tire. They are probably fawking expensive...
 
landrovered

landrovered

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Nov 28, 2006
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Well by the time you add up a lift, castor corrected radius arms, longer shocks, HD steering bars and the other stuff needed for a big lift it may not be sooooo bad.
 
knewsom

knewsom

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Jul 10, 2008
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La Mancha, CA
Indeed - also, this has the MAJOR added benefit of raising your axle off the ground. Granted it doesn't give you the amount of articulation you get with a really big lift, but still. This with a 2" lift... that'd be excellent.
 
KyleT

KyleT

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Mar 28, 2007
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Fort Worth, TEXAS
landrovered said:
I was thinking of the old series portals that were chain driven I guess.
Click to expand...

I think the "tractor" series ones were chain driven.

do you think the straight cut gears would whine at speed? kinda looks like they might.
 
garrett

garrett

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Jun 18, 2004
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Middleburg, VA
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KyleT said:
I think the "tractor" series ones were chain driven.

do you think the straight cut gears would whine at speed? kinda looks like they might.
Click to expand...

Kubota (M series I think) and other tractor companies have been using ring and pinion "geared" axles for quite some time. They are far more heavy duty than 4x4 style portals. I believe they call them bevel gear axles.

Case/IH, New Holland/Ford and other older "crop" style tractors had extreme versions of the portal axles to raise the tractors up really high and have great clearence. They may have even called them planetary axles.
 
BackInA88

BackInA88

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Dec 6, 2007
392
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Troy, Michigan
D Chapman said:
Helical-cut gear sets would be a lot better. Maybe in V2.0...
Click to expand...

Looking at the housing I don't know if they could fit the correct bearings in there to take the side loading this would generate under the forces of the gears trying to screw way from each other.
 
R

RBBailey

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Jul 26, 2004
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Oregon
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That's one of those things where you go.... Why didn't I think of that?

For a dedicated trail rig, portals seem like they would just be sweet, but how do they perform on-road? One of the reasons I like Rovers is that I can have a good 4x4 without having to trailer it like a red-neck to the trail.

When I think of putting portals on my rig, I think of giant whip antennas and day-glow orange rattle can painted external roll bars.
 
blkrover

blkrover

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virginia
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i e-mail Wolfgang and this is what he said

"The set of portals incl. brakes for the Defender is 6.950,- exl. tax.
There is absolut no whiny noise from the portals and the handling is excellent like a stock Rover with bigger tires.

If you have more questions please let me know.

Best regards
Wolfgang"

so $7000 for bolt on portals...
 
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