What is 4WD or AWD? - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat

Lounge For casual talk about things unrelated to General Motors. In other words, off-topic stuff. And anything else that does not fit Section Description.

Thread Tools Search this Thread
Old 03-27-2006, 11:00 PM   #11
Senior Member
Posts like a Northstar
Join Date: Jan 2005
Location: Richfield, MN
Posts: 781
Thanks: 0
Thanked 0 Times in 0 Posts
alec_b is on a distinguished road

Originally Posted by fuelforthesoul1999
Yes what I'm saying if it has a front axle then it'* a 4WD regardless if it'* being driven or not but it'* there.

But if it'* used even if it'* a 10% of total engine power, it'* AWD.

But I agree with most of you all
Well technically, if you go by what those letters stand for, then yes if 4 wheel can/are being driven then it'* a 4WD. 4WD means 4-four W-wheels D- driven. Whether or not it'* at the same time, all the time. AWD refers to A-all W-wheels D-driven. It'* more a labeling thing than anything, but in all retrospect AWD means all wheels are being given power, in SOME percent, at ANY given time. 4WD means that 4 wheels are CAPABLE of recieving X-amount of power at X-defined time. General rule of thumb here, AWD requires no driver input, 4WD does.
alec_b is offline   Reply With Quote
Old 03-27-2006, 11:36 PM   #12
Administratus Emeritus
Certified Car Nut
GXP Venom's Avatar
Join Date: Jan 2006
Location: Purgatory, Pennsylvania
Posts: 16,538
Thanked 7 Times in 4 Posts
GXP Venom is on a distinguished road

Well.Jeez ya guys can confuse somebody. Alec has it the best. Also 4WD doesnt really drive all four. Each differential has limited slip just like a RWD. So only one tire front and back are pushing; shifting to the other side if one loses traction. AWD gives power to all wheels with a variable torque transfer at each end. I wasnt gonna drink tonite.....but now I need a beer.
GXP Venom is offline   Reply With Quote
Old 03-27-2006, 11:45 PM   #13
Senior Member
Posts like a Camaro
Join Date: Apr 2004
Location: Sioux Falls, SD. Member #2387
Posts: 907
Thanks: 0
Thanked 0 Times in 0 Posts
ten_gigahertz is on a distinguished road

Originally Posted by gxp rules
I wasnt gonna drink tonite.....but now I need a beer.
ten_gigahertz is offline   Reply With Quote
Old 03-28-2006, 12:04 AM   #14
Senior Member
Certified GM nut
Join Date: Feb 2004
Location: MI
Posts: 2,246
Thanks: 0
Thanked 0 Times in 0 Posts
Logan is on a distinguished road

Originally Posted by ten_gigahertz
On the other hand 4x4 is when the power is ALWAYS split up between the wheels evenly. 25% to each wheel 100% of the time.

So him saying that the car is FWD when it has the ability to power the rear wheels, I would say he'* wrong and that it is actually AWD.
You could have gotten away with this had you not said "always" Remember, always is a powerful word, because there is ALWAYS and exception to the rule.

Hyundai'* (start bashing) have a very unique 4WD system. The irony is in how it goes against a couple of a few people'* points.

First, Hyundai Santa Fe'* are 4WD vehicles. Get inside, no where will you see anyway for the driver to control anything that has to do with power to the drive wheels (besides a gas pedal). That is the first thing.

Second, the system does not split the power evenly. There is a bias. 99% of the time, the Santa Fe is front wheel drive. The other 1% it is 60/40 split between the front wheels and the rear wheels respectively.

Just thought I'd toss that out there.

Oh, BTW, not very many 4WD vehicles are 50/50 split. I'm pretty sure Jeep'* are in the minority when they have "part time" 4WD which does evenly distribute power. This works well when there is little traction, but hop on the road with a 4WD vehicle with 50/50 split and it will not last more than a few miles without doing damage.[/list]
Logan is offline   Reply With Quote
Old 03-28-2006, 12:13 AM   #15
Senior Member
True Car Nut
Join Date: May 2003
Location: Lethbridge, Alberta, _______Canada._______ West Coast Bonneville Fest ___05,06,07 Survivor___
Posts: 8,134
Thanks: 0
Thanked 0 Times in 0 Posts
SSEimatt93 is on a distinguished road

I work for www.gearcentregroup.com
I sell transfercases, differentials, lockers and all that stuff ALL DAY LONG lol

Many different variations of Transfer case, mainly made by Borg and Warner or New Process.

A stock 4wd truck, without a diff lock in the front or rear is really only a two wheel drive, one wheel has power in the rear, one has power in the front, as both differentials are "open". The Inner nest kit it both diffs will couple and power away from a wheel that gains to much traction, usually. This is why they wear out, and people chew splines and what not on there axle shafts.

AWD basically means it a full time "4x4" vehicle, usually Fully independent drive/suspensoion, much like say on a Chevy Astro van say for instance
GM 7.25 CORP diffs front and back. This gives a better traction advantage, especially on more say gravel.

Thats the gist of it...i could go into Vacuum operated diff locks/electric diff locks, were a small shift collar is engaged to lock that differential into power mode, as, some vehicles regardless of t-case shifter position, still allow for the front driveshaft to rotate.
SSEimatt93 is offline   Reply With Quote

Related Topics
Thread Thread Starter Forum Replies Last Post
Service 4WD light phwe9774 GMC/Chevrolet Truck/SUV 10 06-03-2014 08:33 PM
4wd light comes on. Rickybobby1985 GMC/Chevrolet Truck/SUV 3 03-04-2014 10:19 AM
4x4 Switch Flashing 4WD works ssr429 GMC/Chevrolet Truck/SUV 22 02-13-2014 09:09 AM
2002 Suburban 2500 4WD roar? karnor GMC/Chevrolet Truck/SUV 6 07-25-2013 04:35 PM
2001 Chevy Blazer 4wd 4.3L V6 JonAllen Introductions for new members 10 08-05-2011 10:14 PM

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

All times are GMT -4. The time now is 03:09 PM.

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.