brianb1222

For 14k How Big Of A Tire Could These Hold? If I Spend That Much I Want To Run 40's And Not Worry About It.

jeepik

they will hold up to 40s without issues

the problem with portals is it will be too much lift for us JK's

i think with stock springs you could probably run 42's and possibly 44 inch tires with them, that means its too much for practical use for about 99% of us

HUNTER

Looks like the gearing tucks into the wheel. What size rim does it require?

TxCop07

It is a gear reduction so you would not have to regear, it multiplies your gears. it adds 4.5" of lift to your stock jeep.

jeepik

no im saying these offer too much lift even with the shortest possible springs

they will not work with the stock frame and body on a jeep that you can drive on the street

VBS4

I think he was commenting on the below quotes

2stoned

In regard to the size of tire you can fit with these portal axles you would need to ad 4.5 inch of bump-stop in the traditional spring lift.
So:
+ You get the lift with room for the huge wheels, maintaining the original drive and steering angels.
+ You get the gearing in the portals that halves the strain on your drive line and bring your total gearing back towards normal; no need for the 60 stuff.
+ You gain up towards 9 inches of clearance under the pumpkins and driveshafts.
+ You will get through mud and over stumps and rocks much easier.
- You ad some weight inside of the wheels.
- You spend a lot of money.
I love the concept

2stoned

Welding in the "stock" fittings should not be too difficult.
I would be tempted to do something to enhance the flex of the system though.
You still maintain the benefit of keeping geometry within the normal range.
Adding much more than 4 inches the normal way does require you to change geometry.
I know that wheels in the 40inch rage are huge for DD, but then again, so was 37inch on a TJ or earlier.
I would think that apart from the extra weight in those portal-mounted wheels this will be very drivable on a JK.
It is quite an expensive route to take though.
With an Airock suspension you can still adjust ride height to fit your current set of footware

2stoned

Yup, agree.
Adapting this into a OEM suspension and steering would just require you to copy the position of fittings (more or less) of the original.
It would be a shame not to try to improve flex though.
And a tone ring with more teeth would probably allow you to tune the computer in to the larger tires. That would be neat.

unimog2

You are correct. the VOLVO C303, Pinzgauer (Although Independent front and rear suspension) and the UNIMOG 404, U900, U1100, ect a solid Portal Axle design. There are "highly modified" jeeps out there running MOG Portals, they do very well, with a 7.21 reduction at the hub.