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http://www.ebay.com/itm/Ring-and-PiParts_Accessories&hash=item3a80550ffe&vxp=mtr, http://www.proformance.com.au/Portal_Hub.html, http://www.fourwheeler.com/how-to/ton-portal-axles-dana-60-14-bolt/photo-02.html. Its helical gear-reduction hubs allowed for top-mounted axles that provided a ground clearance of 16 additional inches. Other applications, such as Ford Broncos and Raptors, are also in the works. And if the win on Sunday, sell on Monday mantra holds true, we dont expect to hear much about IFS or a solid axle in the future. Cody Waggoner and Jordan Pellegrino were early adopters of portal hubs, running two-gear portal boxes from 74Weld on their fully independent Ultra4 cars. Upon further reflection, we realized the Humvee wouldn't be part of the military's lineup if it didn't work in the sand. That heritage stands H1 owners in good stead when they're hanging it out on tough backcountry roads and trails. Welcome to H4O! G503, WWII Jeeps, Willys MA, Willys MB, Ford GP, Ford GPA, Ford GPW, Bantam BRC, Willys MB & Ford GPW, For Sale Section, Jeeps used by: USMC, USN, USCG (-NO EBAY-CRAIGSLIST-COMMERCIAL SALES-), Willys Go Devil Engine Based GENERATOR SETS and COMPRESSORS(Includes Hobart Bros. & other GenSets), G503 Tools & Equipment ( Vehicle & Pioneer), Unit & Vehicle Markings, General Military History, Unit-Battalion-Division Information, G740, G758, Willys M38 (MC), Willys M38A1 (MD), Willys M170 (MDA), HAND CARTS - FOR SALE & WANTED - General Discussion & Knowledge Base, Living History / Reenacting Knowledge Base, Living History / Reenacting Wanted, For Sale, Models, Toys, and Remote Control MV Equipment, Amphibian, DUKW, GPA and other wheeled amphibian, Boats, Ships, Landing Craft, and Tracked amphibian, Warbirds - Wanted, For Sale (NO AUCTION or EBAY) and Knowledge Base. The big vehicle can really be whipped around in tight places. I sent a not to these guys a while ago. Does anyone have any links to 2.56 rears for sale? Essentially, the axle rotates on a higher plane than the wheels, which allows, among other things, for higher overall ground clearance. The 3 speed transmission should also have a 1 to 1 ratio in drive. A few changes to the military Humvee were made, including steel safety doors with side-impact beams, a steel roof on hardtop and wagon models, more comfortable seating, interior padding, insulation, and a commercially compatible 12-volt electrical system. In addition, at higher speeds the hub assembly can overheat.[5]. The CV Joint faces are 4" apart. In most vehicles, axles the shafts that run between opposing (front and front, back and back) wheels are essentially one uninterrupted component. Yes, it will require allot of cutting and fabing and yada, yada, yada but just elaborating (would be awesome to have that extra few inches of clearance from the ground to lower control arm :drool::evil: ). AM General had no older designs to start with, so, with the other companies well ahead in development of an HMMWV, it went to work designing what would become the Humvee. More than 185,000 HMMWVs and H1 Hummers, both military and civilian, have now been built since the start of production. [1] This gives two advantages: ground clearance is increased, particularly beneath the low-slung differential housing of the main axles and secondly, any hub reduction gearing allows the axle halfshafts to drive the same power but at reduced torque (by using higher shaft speed). The torque multiplication out at the hubs is an under appreciated benefit, Pultz explained. Great idea versus a a rich mans with deep pockets and no conecpt of money dana 80 thats over priced and a less than ideal suspension design as the scorpion. Can anyone that has 2.56 gears, 4L80E with a tach, and GPS tell me what RPM they are showing at 55MPH in OD? The axle an unbroken, horizontal shaft is raised above the mechanism that controls each wheel, so the lowest point in the center of the vehicle is higher than normal. This approach allows existing vehicles to be converted to use portal gear lifts without modifying the axles (Volvo C303 or Unimog 404). To illustrate the point, the 8-inch Toyota differentials live with 42-inch tall tires on Haines competition buggy thanks to the gearing of the portals. In 2020, Jesse Haines piloted a Roxor fitted with his portal axles to victory in the 4600 Class at the Every Man Challenge.

While six designs were submitted to the Army, the three main players were Chrysler Defense (later sold to General Dynamics), Teledyne, and AM General. Hope no one gets butt-hurt with this opinion but I've decided to add and support another option to those thinking of spending their money on aftermarket suspension options for the H3/H3T. Vehicle weight constraints meant that material-application breakthroughs had to be made. For this reason, it was regular practice when driving on tarmac to bump the vehicle over a kerb or other object at times, to allow this wind-up to be released. The E-Lockers impressed us during our test.

We've used the same air compressor in other vehicles, but it seemed to work much faster in the H1. Driveline issues have plagued me for the last two years when I was winning the race, Healy revealed, and by running independent suspension I can have a skidplate that runs the entire length of the vehicle. If you think that this sounds like a scaled up UTV, you are not wrong. The wide low-profile H1 works great off-road, as already stated. The massive SUV is, after all, capable of scrambling over terrain that is completely inaccessible to 99 percent of the off-road SUVs on the market. We invite you to get behind the wheel with us, it's certain to be an interesting drive. This is mounted in-line with the halfshaft, so that there is no change in ride height. For a reduced ad experience, please login or register with the forum. The new civilian H1 has a number of improvements, making it a more comfortable vehicle as well as even more capable in the rough. They are now found on many large quarrying dump trucks and heavy plant. by Retired War Horses Fri Mar 16, 2018 6:55 am, Post CROWNED 2021 NATIONAL CHAMPION.

The full-time transfer case is a very strong NV242. Thus far, neither has been able to convert that advantage a victory at King of the Hammers. The Mason hubs are lightweight aluminum instead of cast iron, and they use four gears instead of two. Thats the case with the Mercedes-Benz 44. In fact, a portal-axle equipped vehicle hasnt won the 4400 Class at the Nitto King of the Hammers since John Reynolds did it back in 2007 at the very first KOH. The body is built from tough 6061 T6 hardened aircraft aluminum that seems to really be able to take a beating. Updated gauges convey needed information to the driver. by Action Fri Mar 23, 2018 3:01 am, Post From rock crawlers to trophy trucks, and now increasingly in purpose-built Ultra4 racing vehicles and more, portals are engineered to revolutionize off-road. One good point that SBuickGuy makesare H1's hi-pinion? The difference between the RPM readings should give me an idea of how much reduction in RPM I will have with 2.56 gears vs. 2.73 gears.

Its all one mostly arrow-straight system. The Chrysler vehicle was an adaptation of the Saluki desert design. One quick question for anyone. Last year one finished 11thin the 4400 class, they clearly have a formula for success. This permits a smaller and lighter halfshaft and internal drivetrain.

A portal hub can be applied to either a solid axle or IFS, and in either case creates an offset between the axle shaft and the hub mounting surface through the use of a geared hub. Teledyne and Chrysler Defense already had vehicles that met most of the HMMWV specifications on their drawing boards at the time AM General took on the project. Ford Debuts 2023 F-150 Raptor R With 700HP Supercharged V8, Competition Diesel Performance Truck Tires, Part 2: Why Drag Racers Choose the Nitto NT420V, Sign up for more restomod content to add horsepower to your inbox. If individual wheels were out of phase with their neighbours, possibly caused by cornering or slightly varying tyre diameter, this could place a considerable force on the gearbox, leading to breakages. The now-iconic and outmoded AM General Humvee, used as the US militarys long-serving wartime vehicle, employed a similar system in its design. They are often used for large and heavy vehicles, where the wheel diameter already gives adequate ground clearance. Since we're Off-Road magazine, we don't much care about how the H1 Hummer works on Rodeo Drive in Beverly Hills, even though it has become de rigueur to be seen in one there. Mercedes G-Class Review: The All-New, Legendary G-Wagen Remains Iconic, This content is created and maintained by a third party, and imported onto this page to help users provide their email addresses.

AM General says that the Runflat works for about 30 miles, but we ripped a sidewall on the first third of the Golden Spike trail in Moab, then completed the whole trail and drove back to town on the flat, just to see if we could. As I said "Reality Check", but what the heck, we are all friends here. Hey Dwaine, sorry I wasnt trying to come off that way, heck I have a scorpion rc car from walmart that my kids still drive around!

The change to the 2.56 ratio probably won't get you the rpms that you had in your pick up truck. While we may beat our 4x4s in the backcountry, we usually get home and perform needed repairs quickly. While the testing and evaluation process was too involved for us to go into, the final winner of the exhaustive tests was the AM General design. Those portals enable the trucks front suspension to have 24.5 inches of wheel travel, only about an inch less than our two-wheel-drive trucks, Neal Mason revealed. The portals have one gear instead of two so that the rotation is corrected. A growing clamor from the civilian marketplace also convinced AM General to offer the Humvee to the public. In March 1983, AM General was awarded a $1.2 billion contract to produce 55,000 HMMWVs during a five-year period, with options to build another 15,000 vehicles if wanted. Recognizing that every individual's motoring journey is unique, we seek to give form to both untold as well as celebrated facets of the automotive world. Couldn't one vehicle be designed that could replace all the rest? The two designs definitely need different mesh patterns. Point is, you don't know what you don't know. The immediate benefit is increased ground clearance, but that is not the only advantage for those looking for an edge over the competition. If the difference in reality is no more than 50RPM, I will be happy investing in 2.56 rears and running down the highway around 1900RPM at 55MPH. The axle half shafts can spin at a greater speed but generate less immediate torque, meaning less work at the outset and more productivity at the end of the machine.

Differentials, then, can be smaller, thus further increasing ground clearance, which, coupled together, provides more overall capability off-road. He then reported on how well it worked and, with some rough edges smoothed off, how well a civilian version might be received. Mine is 2350RPM in drive which I believe is a 1to1 ratio in the transmission. In the rear, a traditional Dana 60 solid axle from Dynatrac was used with a gear ratio that matches the combined gear ratio of the front axle and the 1.45:1 front hubs. My question is if an H1 front diff would last in an H3Sounds crazy right!?! And my geared hubs should still be 1.92 Ratio? Once the specifications for the HMMWV were released, the development race began.

A surprise was the Hummer's sand performance. AM General subsequently won new contracts for additional vehicles. Geiser fitted 74Weld portals on the front of the Broncos to leverage the advantages both in the desert and in the rocks found at King of the Hammers. Expect to see these two portal-axle shod Broncos battling it out for the victory on race day. The Teledyne prototype was based on the Cheetah, a vehicle designed by Mobility Technology International. Today, portal gear lifts are manufactured for use in utility task vehicles (UTV). by SinDiesel Wed Mar 21, 2018 7:05 pm, Post The military Kbelwagen of WWII used a ratio of 1.4:1 to provide a 2.5mph walking speed in first gear,[4] as well as a useful lift of 50mm. THIS is what I wanted to know from my original post. I can't accept the fact that there are no places with piles of older 2.56 HMMWV rears that the owners don't want to make some money selling them. by 86humv Thu Mar 15, 2018 8:03 am, Post Joining the compressor under the hood are dual batteries, a superb air cleaner, and fairly easy-to-reach service points.

You may be able to find more information about this and similar content at piano.io, An Automatic GMT Under $1,000 Changes Everything, Mercedes's New Sports Car Could Challenge the 911, LeBron James Invests $30 Million in Bicycles, A Bunch of New Balance Sneakers Are Now on Sale, These Are Our 10 Favorite Products of July, The Full-Metal G-Shock 'CasiOak' Is Finally Here, These Are the Best Board Shorts Money Can Buy, Meet the All-New 2023 Chevy Colorado Pickup, 4 Things to Know About Portal Axles, the Secret to the Mercedes 44s Badass-ness. That is the equivalent of going from a 33-inch to a 37-inch tall tire without having to add bigger axles or lower gears in the differential., This wont be the first-time portal axles are run in the 4600 class. The venerable 4L80E overdrive automatic is tough, and the gear ratios in the tranny match the 6.5L turbo's output. The previous post calculated perfect conditions. Hub gearboxes were an iconic feature of the Alvis FV600 chassis vehicles, such as the Stalwart and Saracen. New storage compartments for the driver and front passenger make storing small things such as glasses easier than before. If you flipped an amc20 over you could solve that problem.

Post I want to get my tach installed and see what i get with 3.08 and OD.

If you buy from a link, we may earn a commission. During the photo shoot in the Hurricane sand dunes and slickrock, it was convenient to be able to air down in the sand to minimum pressure, then air up a little for the off-camber slickrock sections. We've all been down the same road and the same question keeps coming up over and over. you mean beside the fact that it spins the wrong way? These included the M151 -ton (the most recent variant of the venerable Jeep-type vehicle); the 1/2-ton M274 Mechanical Mule; the -ton Gamma Goat; and the 1-1/4-ton M880 Dodge pickup. And they will have some of the biggest names in the sport behind the wheels, including Vaughn Gittin Jr, Loren Healy and Bailey Cole. AM General makes claims in its product descriptions relating to the H1's slope-climbing and sidehill ability. It has made its mark, not only on the battlefields of the world, but in the backcountry and on the boulevard here at home. Another help here is the H1's 25-1/2-foot turning radius. When the hummer is moving forwards and you look at the cvs they are turning counter clockwise.

H1 Hummer Four-door Wagon SpecificationsLength: 184.5 inchesWidth (excluding mirrors): 86.5 inchesTrack width: 71.6 inchesHeight: 75 inchesWheelbase: 130 inchesCurb weight: 7,608 poundsPayload: 2,692 poundsGround clearance: 16 inchesApproach angle (with winch): 47 degreesDeparture angle: 37.5 degreesBreakover angle: 32.5 degreesTurning radius: 25.5 feetGrade capacity: 60 percentSidehill capability: 40 percentWater-fording capability: 30 inchesRunflat capability: 30 miles @ 20 mph. It may not display this or other websites correctly. The winch is fast and reliable and will extract the H1 from most difficulties. Running down the road at 1900RPM at 55MPH is not a 50RPM drop from 2175RPM. The CTIS uses a tough 12-volt compressor under the hood that not only inflates the tires, but can be used for other needs around the camp. 2.56 gears are cheap, but the hassle of resetting the rears correctly with new gears keeps me from going that route. Gear Patrol participates in various affiliate marketing programs, which means we may get paid commissions on editorially chosen products purchased through our links to retailer sites. You have to drive them differently than a traditional car, but this is basically a scaled-up UTV with 780 horsepower. The new Bronco buggy is a two-seat chassis with the 460 cubic inch Jeff Ginter-built Ford small block fitted behind the cockpit. Custom housings with flipped differentials are necessary since the two-gear Hummer portals reverse the direction of power provided to them. If you have ever seen and compared what the Scorpion suspension can do & how it work vs. the HUMMER or H1 suspension, you would realize that there is no comparison and wouldn't be talking about putting an H1 diff and suspension on an H3. By offsetting the CV vertically, we can get it close to traditional 2WD numbers for bump and droop. Piloting an AWD Mason truck, Bryce Menzies won the Toyo Desert Challenge at King of the Hammers in 2021, proving this is a winning combination. 4speedfunk I like your passion into finding a good alternative and investigation. The research I did on a M1123A2 stated that the gear ratio was changed in the TC by AMG. Our diff is 12" round, 10" Wide, with INTERNAL CV joints. By providing a 1.92:1 gear reduction out at the housing ends, all of the upstream components can be smaller and lighter, Haines explained. It affords a maximum of 17 inches of ground clearance as opposed to the current normal Mercedes-Benz G-Class, which has a still above-average 9.5 inches. The H1 has to perform well in a variety of terrain - be it desert, mountains, or jungle - for long periods, with minimal or no maintenance. Time to really think out of the box. The heated windshield was added a few years ago, but still works great for those in cold climates who need to keep the windshield free of mist, snow, and ice. Built by Triton Engineering and featuring 74Weld portals at each corner with a 1.63:1 gear reduction, Healy commissioned this buggy build with the specific intent of winning King of the Hammers. Look at how fast the UTVs have gotten at King of the Hammers, Healy noted. which has a still above-average 9.5 inches. Great idea versus a a rich mans with deep pockets and no conecpt of money dana 80 thats over priced and a less than ideal suspension design as the scorpion. The controls for the Central Tire Inflation System (CTIS) have been moved up to a position on the dash, which makes it easier to use while underway. The Mercedes G 550 44s capability, most visible in its extreme ground clearance, is possible thanks to an old-school mechanical wonder: the portal axle. While differential gearing sounds too high at 2.73:1, that number is almost doubled by the 1.92:1-geared hubs at all four corners, making the overall gear ratio of the H1 5.24:1. The 6.5L V-8 turbodiesel, currently built by AM General, is adequate for highway running and is excellent off-road. In most cases, you'll be able to use the winch to help others who are stuck. Even with my gangly, six-foot-tall frame, entering the cabin is a chore: I have to heave my foot higher than is naturally acceptable, grab the steering wheel and pull myself into the luxuriously-appointed drivers chair. The new A/C and heating system, borrowed from GM trucks, works adequately for front and rear passengers and is easy to control. I'll start to think I'm in a road tractor going down the highway. The current H1 has improved creature comforts, although it still doesn't hide its military heritage. He talked his good friend and President of AM General Jim Armour into letting him try a Humvee. With my 2.73 gears- 2175RPM at 55MPH in OD. They greatly reduce the gearing without putting that stress to the diffs. Let's face it: An 8,000-pound-plus (with fuel and passengers) vehicle doesn't sound like the ideal dune buggy. There are many reasons why the H1 Hummer works well off-road. Finally! by johncarrol Fri Mar 23, 2018 5:46 am, Post by Action Thu Mar 22, 2018 6:37 am, Post Seriously, let's be practical - much rather spend my money if I ever get to the his point with my H3T and turn it over to someone like Dwaine to replace my suspension with a Scorpion suspension. The torque supplied in Low range will truly "pull stumps." Since were doing some of the gear reduction out at the wheel, Mason explained, The CVs and axles see about 40% less torque than in a standard configuration. In an effort to provide their customers with a competitive advantage, Mason does not sell their portal hubs individually, but only as part of their unlimited AWD truck package. I implied that if the difference in reality from 1860 is only 50RPM, I would be happy. I did not state or imply I was looking for or happy with a 50RPM drop from what I have now. Portal axles (or portal gear lifts) are an off-road vehicle suspension and drive technology where the axle tube or the half-shaft is off-set from usually above the center of the wheel hub and where driving power is transferred to each wheel via a simple gearbox, built onto each hub. Inflating them is just as easy - push the switch and watch the gauge until it reads the desired pressure. The 74Weld portal boxes are also the first to integrate a unit bearing, an approach that company founder Quinn Pultz has since patented.