These portals are on my "dream list" for things I want on my Dodge. I would do the 4 wheel steer option. The only drawback I have found running a fullsize longbed quadcab truck is turning diameter. On my truck curb to curb turning diameter is 52 feet.:Wow1: If I could cut that in half I would love it.
Portal Axles on Dana 60? CTIS too?
- Thread starter psychohawk
- Start date
What does the extreme offset from the kingpin to the hub face do to steering geometry? It seems as though there would be a very negative effect on caster as a result of the moment imposed on the steering arm. Does this steering self-straighten or is it like driving a forktruck? Are the wheels intended to have an offset which counters this? I like the concept but I'm not sure I'm conviced in the application...
Spence
Spence
alosix
Expedition Leader
From reading the site, they designed it around a H116.5 wheel. They have a TON of backspacing. They recommend something similar to keep things in check.
Man.. I just keep thinking about throwing a set of these under a J8. throwing my 4" airbags on it, CTIS, maybe a set of 39s and some airlockers.
That, would be a fun toy.
Jason
lowenbrau
Explorer
I watched the testing video and they appear to test the assembly to 2600 ft/lbs That doesn't seem like enough to me. Stock Dana 60 axles won't break until after 8,000ft/lbs and then only when turned. before I dropped $6K I'd want to know that the portals were going to be stronger than stock. Maybe I'm missing something.
cruiseroutfit
Well-known member
Low volume. I know most of them personally, great guys. But when your selling less than a dozen axles a year its hard to compare pricing with a manufacture and product that makes hundreds a year. Portal-Tek is still recouping a substantial part of their R&D which is completely understandable, they've continued to upgrade and improve their product which means new tooling, new castings, etc.
Not sure where the 8000 ft-lb number comes from.
Keep in mind that's 2600 ft-lbs at the input yoke - now multiply by 1.5 and you're looking at about 4000 ft-lb at the hub during a 100 hour durability test with no degradation in performance. We still have not found the ultimate torque limit yet.
If you can get 4000 ft-lb at one wheel to hook on any surface then you have a hell of a tire or a massive corner weight.
AIM
lowenbrau
Explorer
Cool. I love it when we get input right from the horses mouth. Welcome.
The 8000 number is tossed around quite often. Might be from the Dana 60 bible on Pirates
http://www.pirate4x4.com/tech/billavista/60_front/index.html
There are some claims about half way down, indicating nearly 9000ft/lbs for a stocker to nearly 15000ft lbs for an aftermarket upgrade.
My little 4 cyl diesel makes 250 ft lbs peak and has about a 200:1 low range. I guess mechanically I could create 50,000 ft/lbs. In places like Moab it's pretty easy to put the rig on one wheel and being heavy as it is, broken axles are a fact of life. I just have spindly little Cruiser axles at the moment but even the guys with Dana 60s manage to break them with some regularity. I'm just sayin, 2600 doesn't seem like much. I'll look forward to seeing the that data on the ultimate breaking strength. I'm guessing it'll be much higher, and I'll be standing in line for a set. For $6500, these portals answer a lot of expensive questions. Of course, some kind of unconditional warranty would ease my concerns as well :elkgrin:
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OK, I'll do some more homework on what breaks in a 60 and at what level.
If it provides any more confidence, we ran an analysis case during the design phase we called "one wheel pushoff" - all vehicle torque through one wheel with the weight of the vehicle on the same wheel and the steering providing a substantial lateral load. We found a couple of minor places that were yielding that were fixed in the final design but no overall no major issues.
AIM
FreeManDan
Adventurer
Looks like $6495.00/set any way you slice it!
KEENO
An entire axle is an option
Standard Axle Pricing: MSRP-- Front Axle : $8,499 Rear Axle: $6,999
specs
http://www.portal-tek.com/partsandspecs.html
Price and options
http://www.portal-tek.com/quote.html
Or...
http://www.portal-tek.com/cart/index.php?main_page=index&cPath=6
D
DEEZLPWR
Guest
When they come out with the balljoint portal for the d60 front and portal for the d80 rear i will spend the money on all 4 and place them on my rig! well worth it. then run 38's or so..
Defenderbeam - we're having email issues so please accept my apologies if you have not had a response from us yet.
If by "metric version" you mean the box is assembled with metric fasteners then our boxes are indeed metric. We design and build most everything we do now in metric. Case, cover, and knuckle on each box are held together with M12 flange head capscrews. Locknut on the rotating assembly is a standard 60mm part.
Hope this clarifies your question.
AIM
FreeManDan
Adventurer
There is an article about the bolt on portals from axletech in the newest Petersen’s 4 wheel and off road magazine.
“currently available for dana 60 and corporate 14 bolt axles, but will soon be made for various front and rear axles (some models may require welding), and a smaller and lighter version is coming eventually for half ton and smaller axles as well as IFS!”
Check it out, they have pics of the instillation they did, also in the Montana road trip article they mention that portaltek is also working on a lighter version of their product.
“currently available for dana 60 and corporate 14 bolt axles, but will soon be made for various front and rear axles (some models may require welding), and a smaller and lighter version is coming eventually for half ton and smaller axles as well as IFS!”
Check it out, they have pics of the instillation they did, also in the Montana road trip article they mention that portaltek is also working on a lighter version of their product.
G35Vortec454
Adventurer
I'm in for Introductory Pricing Group Buy
Any takers, including AxleTech?
I have Dana 60 Front and Dana 70 Rear.
In-progress Front Dana 60 Install
http://www2.snapfish.com/thumbnailshare/AlbumID=1683910013/a=102455748_102455748/otsc=SHR/otsi=SALBlink/COBRAND_NAME=snapfish/
Any takers, including AxleTech?
I have Dana 60 Front and Dana 70 Rear.
In-progress Front Dana 60 Install
http://www2.snapfish.com/thumbnailshare/AlbumID=1683910013/a=102455748_102455748/otsc=SHR/otsi=SALBlink/COBRAND_NAME=snapfish/
Backwoods Rambler
Explorer
1.5:1 according to their site.