Not all 4wd's are created equal

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F

Ferocious

Diamond Member
Feb 16, 2000
4,584
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I thought this might interest some folks here.

The Silverado 4x4 uses a locking differential, whereas the Tundra 4x4 uses a limited slip one.

click

 
thecoolnessrune

thecoolnessrune

Diamond Member
Jun 8, 2005
9,673
583
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As I've been saying on this board for quite some time, Tundra's may be "pretty", but they are not a real work truck. That glory still belongs to the Fords, Chevys, and Dodges.
 
Demon-Xanth

Demon-Xanth

Lifer
Feb 15, 2000
20,551
2
81
Locking diffs are nothing new. But in the first minute I could tell there was more to the test than just the diff. A limited slip is generally the best for street use, but most off roaders use lockers. Those are nothing new. There's upsides and downsides to both as well as upsides to a fully open. There's upsides to a spool as well if you only do drag racing :)
 
Aharami

Aharami

Lifer
Aug 31, 2001
21,205
165
106
why does the toyota get stuck? if its 4wd, should the front wheels pull it free when the rear wheel(s) have no traction?
 
overst33r

overst33r

Diamond Member
Oct 3, 2004
5,761
12
81
That was 4wd? Looked to me like the rears were doign all the work.

Also, why did the tundra get stuck on the ramp thingy. Shouldn't the differential sense the wheel spinning and distribute the torque to the wheel that has traction?
 
N

Nyati13

Senior member
Jan 2, 2003
785
1
76

The Toyota was in 2WD for certain, it looks like the Chevy was in 2WD as well. So it's only a test of RWD with limited slip vs RWD with a locking diff, in a situation that should be driven with the 4WD engaged anyway.
 
CptCrunch

CptCrunch

Golden Member
Jan 31, 2005
1,877
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Originally posted by: thecoolnessrune
As I've been saying on this board for quite some time, Tundra's may be "pretty", but they are not a real work truck. That glory still belongs to the Fords, Chevys, and Dodges.
Click to expand...

 
M

mwmorph

Diamond Member
Dec 27, 2004
8,877
1
81
Title should read not all 2WDs are created equal...

Also this video was shot by Eaton marketing to promote the locker they sell. I'm not sure anyone would use 2WD in any of those low speed adverse terrain situations.

The Toyota uses limited slip so it's got better performance for the street in 4WD while still being able to tackle the terrain in 4wd.

I like it, hoe it looks, the fact that it's as much a domestic as a Ford Explorer(80%US, 10% Japan, 10% other) parts, it's the absolute quickest 1/4 ton truck in America, excluding the SRT10 and Lightening which aren't able to be used as real work trucks.
 
D

d33pt

Diamond Member
Jan 12, 2001
5,654
1
81
yeah they were both in 2wd. they were just testing out the rear differentials. both would've walked through that in 4wd with no problems. toyota probably did not offer a locking rear differential because not many owners would take it offroad in situations that required it. plus you wouldn't be able to use it in the street, that's where the LSD shines especially with a torquey engine like the 5.7. to the guy that said the tundra is not a real work truck, get a clue. the new tundra outpulls all of them. it's almost a 3/4 ton class truck competing with the 1/2 tons.
 
iamwiz82

iamwiz82

Lifer
Jan 10, 2001
30,772
13
81
Just weld that SOB up and call it good. It makes for fun turning and loud parking :p.
 
A

AmigaMan

Diamond Member
Oct 12, 1999
3,644
1
0
Originally posted by: thecoolnessrune
As I've been saying on this board for quite some time, Tundra's may be "pretty", but they are not a real work truck. That glory still belongs to the Fords, Chevys, and Dodges.
Click to expand...

my 04 Tacoma has a rear diff lock and I know you can get it for the Tundra. What's with the hate?
 
SonicIce

SonicIce

Diamond Member
Apr 12, 2004
4,771
0
76
my f-250 always gets stuck in the driveway with one wheel spinning. man that annoying
 
Throckmorton

Throckmorton

Lifer
Aug 23, 2007
16,829
3
0


The problem with the Toyota isn't the differential. You can see that it limits slip enough that both rear tires slip. That means the LSD is working perfectly but the tires lose traction. Yeah, a manual locker is the best, but this is staged nonsense.
 
Throckmorton

Throckmorton

Lifer
Aug 23, 2007
16,829
3
0
Originally posted by: mwmorph
Title should read not all 2WDs are created equal...

Also this video was shot by Eaton marketing to promote the locker they sell. I'm not sure anyone would use 2WD in any of those low speed adverse terrain situations.

The Toyota uses limited slip so it's got better performance for the street in 4WD while still being able to tackle the terrain in 4wd.

I like it, hoe it looks, the fact that it's as much a domestic as a Ford Explorer(80%US, 10% Japan, 10% other) parts, it's the absolute quickest 1/4 ton truck in America, excluding the SRT10 and Lightening which aren't able to be used as real work trucks.
Click to expand...

The best on the street is an open diff with a manual locker. A LSD is just a differential with clutches to restrict differential action. Those clutches wear out eventually.
 
P

Pacfanweb

Lifer
Jan 2, 2000
13,158
59
91
Originally posted by: woodie1
Originally posted by: zoiks
Originally posted by: dug777
Both the Op, and that, are silly.
Click to expand...

Toyota sucks giant ostrich eggs.
Click to expand...

Yes. That explains why they and GM are locked in a battle for largest car manufacturer.
Click to expand...
Toyota's got a long way to go to catch GM. They are still neck-and-neck with Ford for #2.
They haven't put Ford in their rearview mirror, yet.
 
JulesMaximus

JulesMaximus

No Lifer
Jul 3, 2003
74,580
982
126
Originally posted by: d33pt
yeah they were both in 2wd. they were just testing out the rear differentials. both would've walked through that in 4wd with no problems. toyota probably did not offer a locking rear differential because not many owners would take it offroad in situations that required it. plus you wouldn't be able to use it in the street, that's where the LSD shines especially with a torquey engine like the 5.7. to the guy that said the tundra is not a real work truck, get a clue. the new tundra outpulls all of them. it's almost a 3/4 ton class truck competing with the 1/2 tons.
Click to expand...

Agreed. :thumbsup:
 
J

JeffreyLebowski

Lifer
Aug 23, 2000
15,509
1
81
Originally posted by: d33pt
yeah they were both in 2wd. they were just testing out the rear differentials. both would've walked through that in 4wd with no problems. toyota probably did not offer a locking rear differential because not many owners would take it offroad in situations that required it. plus you wouldn't be able to use it in the street, that's where the LSD shines especially with a torquey engine like the 5.7. to the guy that said the tundra is not a real work truck, get a clue. the new tundra outpulls all of them. it's almost a 3/4 ton class truck competing with the 1/2 tons.
Click to expand...

Hahahaha, If you mean the toyota claim of pulling 10,00lbs. Ha, they're adding the weight of the truck in that 10,000lb claim.

I'll take my Chevy that doesn't have cam shafts that sheer lobes off, or a tailgate that doesn't separate under normal use of loading an ATV, Improperly heat treated rear drive shafts in 4x4's, transmission failures and several other issues. Text
 
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