Thank you 4X4abc for you excellent response. Just about everyone I know has it wrong about open differentials. I've had many discussions with 4X4
friends that think like David about open differentials.
I do have an engineering background but I get tired of trying to explain the workings of the different types of drive axles.
I was trying to use fewer words at getting the idea across of how limited slip, traction control, and lockers will give you more ability off road than
without (open differentials).
Seems that torque is both energy 'at rest' when matched with friction of road surface, and energy in motion when rotating the tire. My error was
saying it was just the force used to rotate the tire.
Your answer helps to understand how just a push from a friend in back when you get stuck is often enough to move your 3,000 pound car.
thank you for thanking me - teachers so rarely get some positive feedback.
I have been screamed at in other forum trying to help them out. "Don't try and confuse me with facts!" was probably the most irritating response.
But I also know how hard it is to let go of "We have always done it this way."
thank you for thanking me - teachers so rarely get some positive feedback.
I have been screamed at in other forum trying to help them out. "Don't try and confuse me with facts!" was probably the most irritating response.
But I also know how hard it is to let go of "We have always done it this way."
Oh no, I appreciate facts and being corrected... I want only to pass along the truth... I was just trying to make it easy to understand.
Please keep posting good stuff... The history of Baja as well as the four wheel drive adventures there are just GREAT subjects... The Nomads are tired
of me bringing them up, so new blood here is good!
You would like to meet up with BajaTripper (Steve) who lives in La Paz, perhaps? Steve was with us on the Santa Maria trip. His mother (BajaLera) is
writing a book on the early native inhabitants of Baja...
I am going to post on the Cochimi language I am reading about, as well...
One more item concerning the clutch type LSD's. You can arrange them to increase the torque transfer or bias ratio. Looking at the U-tube video it was
interesting to see the Dodge spin both wheels on the rollers, transferring little torque to the traction wheels and as a result, it got stuck pulling
the boat. That is probably a factory setting of the clutches. Just because you have a LSD, it does not mean that you have a good transfer of torque
from one wheel to the other. I have arranged both front and rear to be aggressive. If I lift 3 wheels in the air and put the axles on large, strong
pads, not blocks, my remaining front wheel will burn rubber, pulling the truck off the pads. The other front wheel in the air is not spinning at all.
A locker spin move both.
For those with the Toyota A-TRAC, I would be willing to drop chains, go bumper to bumper and gladly pull you around the parking lot, LOL.
Now, now... the A-TRAC will pull its own weight even if only one tire (even a front tire) is the only one with traction.
While not the same as front lockers, and stronger than normal limited slip, it comes on my truck as standard equipment with the Off Road package...
and the A-TRAC doesn't interfere with steering ability that lockers do.
Nobody does it better than Miss Mona Lisa Vito, on 'My Cousin Vinny' (between minute 1:30 and 3:45 in this clip) (also explains independent suspension
vs. solid axle) :
This will show what both Air-Locked ('03-'06) and Electric-Locked ('07+) vehicles are capable of when using their traction-devices. I am curious what
an A-TRAC vehicle could do in this terrain. An FJ Cruiser was parked near the trail, but not running the actual trail due to its rough nature.
Enjoy!
HOLA all,david you,,, all always, correct..being this is part of my job..I stayed on the side line's and did not open my Big mouth !! now I throw a
little bit in..their is also what is known as air lockers and they work rather well and for baja ... locking the spider = full pozie....you will also
have a great air compresser on board for airing up !! K&T... PS..the
company is ARB
Yup, for enough thousand dollar bills, anyone can have ARB lockers front and back... so far, the Toyota A-TRAC system has taken me everywhere I wanted
to go with ease... and I paid nothing extra for it on my Tacoma. But, thanks... On the Mision Santa Maria trip the vehicles with ARB lockers did no
better (or worse) than my A-TRAC... one thing that Art pointed out... A-TRAC did not need to be turned off to make the sharp turns.
Part of this whole equation, regardless of all the fine vehicles with their nice equipment, is definitely the skill level of the driver.
As Harald had mentioned before all the fancy electronic ESP, A-track and other computerized "4x4" systems - are reactive ones. The traction control
system has to first encounter some adverse conditions, before it will react.
The driver controlled differential locks are proactive traction devices. The (hopefully) skilled driver has to read the trail and he has to make the
decision when to use the diff locks and which ones - before the vehicle gets into "trouble".
I'm running an ARB in the front and a detroit in the rear of my 66 bronco. wish I would have done the reverse though and ran the detroit in the front
and the ARB out back.
The detroit in the rear makes a lot of noise and pops/clicks and tires the chirp on pavement. In the front it doesn't matter once the hubs are
unlocked or the front axle is disengaged via the twin stick transfer case. An ARB in the front is a waste of money, unless you really want airlockers.
they are awesome out back, as it gives you 100% lockup offroad and 100% open for on-road manners.
The eb never sees pavement though... so it is not an issue.
"If it were lush and rich, one could understand the pull, but it is fierce and hostile and sullen.
The stone mountains pile up to the sky and there is little fresh water. But we know we must go back
if we live, and we don't know why." - Steinbeck, Log from the Sea of Cortez
"People don't care how much you know, until they know how much you care." - Theodore Roosevelt
"You can easily judge the character of others by how they treat those who they think can do nothing for them or to them." - Malcolm Forbes
"Let others lead small lives, but not you. Let others argue over small things, but not you. Let others
cry over small hurts, but not you. Let others leave their future in someone else's hands, but not you." - Jim Rohn
"The best way to get the right answer on the internet is not to ask a question; it's to post the wrong answer." - Cunningham's Law
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I was hoping you would bite the hook
PS..the
company is ARB