Home » Public Forums » GMCnet » [GMCnet] Limited Slip Differential
| [GMCnet] Limited Slip Differential [message #237531] |
Sun, 26 January 2014 14:30  |
 |
USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
|
Senior Member |
|
|
Espen,
I've created a new message so that people that have installed JimK's LSD can testify to what I've noted below.
I have seen JimK's LSD up close and personal and it is a simple device. It consists of four aluminum blocks and four springs. The
aluminum blocks are pressed up against the two spyder gears which are "connected" to the axles and makes them turn in unison when
you go straight. When you go around a corner the force on the spur gear on the outside of the turn is greater than the spring force
and it turns faster. There isn't anything to "engage" and make it go straight ahead in a turn.
Here's the link again so you can look at the LSD again: http://www.appliedgmc.com/products/full/876.jpg
Regards,
Rob M.
Sydney, Australia
-----Original Message-----
From: Espen Heitmann
The problem with a LSD on winter roads is if you try to make a turn and it engages you will go straight ahead, not a problem on rear
wheel drive vehicles, but on the GMC.. not a good idea.
That is why the ARB would have been a good solution as you can control when it is going to lock up the front diff :)
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
|
|
|
|
|
|
|
|
| Re: [GMCnet] Limited Slip Differential [message #237552 is a reply to message #237549] |
Sun, 26 January 2014 17:47  |
Gary Worobec
Messages: 867
Registered: May 2005
Karma: -1
|
Senior Member |
|
|
Jim's diff is similar to a Detroit locker or Richmond locker. It uses the
pressure of springs to mate 2 spur gears together to provide 2 wheel drive
in a straight line. The springs then allow the gears to move apart or slip
under the pressure in a left or right turn. A true LSD uses clutch packs
with alternating steel/fiber discs and a special diff oil that allows them
to slip when turning a corner but with enough friction to provide 2 wheel
drive in a straight line. If you hear a loud click, click, click from a
diff when the vehicle is turning it has a locker in it. I have had a locker
in my Geo Tracker for many years and its held up fine. No reason why it
should not be OK for the GMC.
Thanks,
Gary and Joanne Worobec
1973 GMC Glacier
Anza, CA
-----Original Message-----
From: gmclist-bounces@temp.gmcnet.org
[mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of Robert Mueller
Sent: Sunday, January 26, 2014 3:18 PM
To: gmclist@temp.gmcnet.org
Subject: Re: [GMCnet] Limited Slip Differential
Espen,
I did not explain it clearly. The LSD that JimK sells is constantly engaged.
The aluminum blocks press on the spur gears constantly.
The force of the outside wheel turning faster than the inside wheel makes
the spur gear slip on the block pressing against it.
Regards,
Rob M.
Sydney, Australia
-----Original Message-----
From: gmclist-bounces@temp.gmcnet.org
[mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of Espen Heitmann
Nice Rob :)
So have anyone tried the JimK's LSD (Hmm.. that did sound kind of strange..)
on winter roads ?
Quote from Rob
"I have seen JimK's LSD up close and personal and it is a simple device. It
consists of four aluminum blocks and four springs. The
aluminum blocks are pressed up against the two spyder gears which are
"connected" to the axles and makes them turn in unison when
you go straight. When you go around a corner the force on the spur gear on
the outside of the turn is greater than the spring force
and it turns faster. There isn't anything to "engage" and make it go
straight ahead in a turn."
However Rob what makes the LSD engage ? one tire going faster than the
other, right ?
So what happend when you make a turn ? one tire is going faster than the
other..
In my mind the LSD do not know if you are making a turn or not, I could of
course be wrong :)
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
|
|
|
|
|
|
| Re: [GMCnet] Limited Slip Differential [message #237558 is a reply to message #237554] |
Sun, 26 January 2014 18:50 |
|
USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
|
Senior Member |
|
|
Espen,
This unit is not designed like "all" LSD or lockers.
I'll try explaining it another way.
You're going down an icy road and you come to a corner where you want to make a right turn.
You turn the steering wheel to the right.
The inside wheel slows down while the outside wheel speeds up.
The spur gear attached to the axle on the curb side of the turn slows down while the spur gear attached to the axle on the outside
of the turn begins to turn faster. The coefficient of friction of the blocks against the spur gears is NOT high enough to force the
inside wheel to turn and force the vehicle to go straight. It is low enough to allow them to turn at different speeds yet high
enough to force them to turn in unison on slippery surfaces going straight ahead.
The "secret" is getting the spring tension correct to allow this to happen!
Think about this; who would be stupid enough to sell a unit that would stop you from making turns safely under any conditions?
Regards,
Rob M.
Sydney, Australia
-----Original Message-----
From: Espen Heitmann
Yes and all of the above is just fine when you have traction on a asphalt road, then all LSD or lockers will release due to the
frictions the tires have to the surface, however on a snowy or icey road your traction will be minimal and the tires will have no
friction to the surface.
So what will happend ? the LSD will not release but lock up, and belive me, you will not be able to make that turn.
Please prove me wrong :)
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
|
|
|
|
| Re: [GMCnet] Limited Slip Differential [message #237563 is a reply to message #237558] |
Sun, 26 January 2014 19:42 |
jim kanomata
Messages: 257
Registered: March 2007
Location: fremont,ca
Karma: 12
|
Senior Member |
|
|
Rob,
Hate to tell you there is no aluminum.
The person that developed this has worked on various rear ends and have tested on various vehicles before we contracted with him to supply them to us.
Should any one have any negative feedback with our product they should contact us.
Rob, I am shocked to hear you say there was aluminum used.
I will shut up here as I will end up upsetting all the smart people on this.
People like Walt Halley and others that have been contracted to assemble know the product and the good it does.
These final drive units are very narrow, so any conventional unit will not fit.
I had Tom Pryor at our shop this week working with our guys testing his reaction arm set and the parking brake.
He paid for the air fair, and we put him up in a motel and picked majority of his expense here.
I'm sure someone will copy his development and cheapen it.
Frankly those people can do that and most will purchased the pirated unit and think it is really cool as you think I overcharge.
Jim Kanomata
Applied/GMC, Fremont,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
|
|
|
|
| Re: [GMCnet] Limited Slip Differential [message #237565 is a reply to message #237563] |
Sun, 26 January 2014 20:00 |
|
USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
|
Senior Member |
|
|
Jim,
Sorry, the blocks sure looked like aluminum when I saw the unit at the Pueblo rally and the color difference in the photo on your
website made me think the same, obviously you would know better!
http://www.appliedgmc.com/products/full/876.jpg
Regards,
Rob M.
Sydney, Australia
-----Original Message-----
From: jim kanomata
Rob,
Hate to tell you there is no aluminum.
The person that developed this has worked on various rear ends and have tested on various vehicles before we contracted with him to
supply them to us.
Should any one have any negative feedback with our product they should contact us.
Rob, I am shocked to hear you say there was aluminum used.
I will shut up here as I will end up upsetting all the smart people on this.
People like Walt Halley and others that have been contracted to assemble know the product and the good it does.
These final drive units are very narrow, so any conventional unit will not fit.
I had Tom Pryor at our shop this week working with our guys testing his reaction arm set and the parking brake.
He paid for the air fair, and we put him up in a motel and picked majority of his expense here.
I'm sure someone will copy his development and cheapen it.
Frankly those people can do that and most will purchased the pirated unit and think it is really cool as you think I overcharge.
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
|
|
|
|
| Re: [GMCnet] Limited Slip Differential [message #237571 is a reply to message #237563] |
Sun, 26 January 2014 20:33 |
 |
Loffen
Messages: 1087
Registered: August 2013
Location: Norway
Karma: 1
|
Senior Member |
|
|
Jim, I am absolutly not saying that there is anything wrong with your LSD, I am just saying that we have some pretty tuff conditions here during the winter and that I have some really bad experiences with other LSD setups on the front axle.(did some seriuos 4x4 driving in my younger years)
Rob let's turn it around, you are going uphill turning right in 40 mph, you push down the throttle and the inner tire will start to spin, it will do that for several reasons, first of all you have low traction due to the ice, second you will have a weight transfer to the left due to the right turn you are in and you will have even less traction on the right tire.
All this is fine with an open differential, you will slow down and maybe come to a stop since the power will not be transferred to the left wheel, the power will be lost going to the right wheel.
However with any LSD I have come across so far it will try to transfer the power from the from the wheel with no traction to the wheel that has traction, right ? I think we do agree so far.
So since the right tire is spinning it will overcome the preload in the LSD (and this is what it should do as you are spinning a tire) and start to transfer the power to the wheel that has traction, this may happend slow or with a click depending on the LSD, but you are on ice and I promise you that the left tire will start to spinn when you get that power transfer.
On a rear wheel drive car your rear will spin out and you could make a real tuff turn, no problem.
But on a front wheel drive you will experience the same as blocking the front wheels when braking without ABS, you will go straight forward no matter which way you steer.
In most cases you will be just fine and have no problems with the LSD, But the LSD only have to engage once under the right conditions and you will have a one way ticket off this planet.
1973 23' # 1848 Sky Blue Glacier called Baby Blue and a 1973 26'-3 # 1460 Parrot green Seqouia Known as the Big Green,
And sold my 1973 26'-2 # 581 White Canyon lands under the name Dobbelt trøbbel
in Norway
[Updated on: Sun, 26 January 2014 20:35] Report message to a moderator |
|
|
|
| Re: [GMCnet] Limited Slip Differential [message #237576 is a reply to message #237571] |
Sun, 26 January 2014 21:47 |
Bullitthead
Messages: 1411
Registered: November 2013
Karma: 5
|
Senior Member |
|
|
This is a "limited slip" setup you guys are referring to, not a "positive traction" setup! When 1 wheel slips, it slips! Not a problem for the amount of control the rolling surface has over the tires. If any appreciable torque is generated toward the other axle after one spins, the drive is going to fuse if you keep up this behavior long enough and you'll be on the side of the road with smoking final drive. This setup is designed to make it a little stiffer than "free" to turn each axle a different RPM. Betcha it works great for everything but roundy-round racing. It is NOT a "positive traction" setup.
Terry Kelpien
ASE Master Technician
73 Glacier 260
Smithfield, Va.
|
|
|
|
| Re: [GMCnet] Limited Slip Differential [message #237577 is a reply to message #237571] |
Sun, 26 January 2014 21:48 |
|
USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
|
Senior Member |
|
|
Espen,
After "shocking" JimK by saying that the blocks were aluminum I'm finished with this discussion, I'll let JimK explain how it works
if he so desires.
Regards,
Rob
-----Original Message-----
From: Espen Heitmann
Jim, I am absolutly not saying that there is anything wrong with your LSD, I am just saying that we have some pretty tuff conditions
here during the winter and that I have some really bad experiences with other LSD setups on the front axle.(did some seriuos 4x4
driving in my younger years)
Rob let's turn it around, you are going uphill turning right in 40 mph, you push down the throttle and the inner tire will start to
spin, it will do that for several reasons, first of all you have low traction due to the ice, second you will have a weight transfer
to the left due to the right turn you are in and you will have even less traction on the right tire.
All this is fine with an open differential, you will slow down and maybe come to a stop since the power will not be transferred to
the left wheel, the power will be lost going to the right wheel.
However with any LSD I have come across so far it will try to transfer the power from the from the wheel with no traction to the
wheel that has traction, right ? I think we do agree so far.
So since the right tire is spinning it will overcome the preload in the LSD (and this is what it should do as you are spinning a
tire) and start to transer the power to the wheel that has traction, this may happend slow or with a click depending on the LSD, but
you are on ice and I promise you that the left tire will start to spinn when you get that power transfer.
On a rear wheel drive car your rear will spin out and you could make a real tuff turn, no problem.
But on a front wheel drive you will experience the same as blocking the front wheels when braking without ABS, you will go straight
forward no matter which way you steer.
In most cases you will be just fine and have no problems with the LSD, But the LSD only have to engage once under the right
conditions and you will have a one way ticket off this planet.
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
|
|
|
|
| Re: [GMCnet] Limited Slip Differential [message #237583 is a reply to message #237558] |
Sun, 26 January 2014 22:51 |
Kosier
Messages: 834
Registered: February 2008
Karma: 1
|
Senior Member |
|
|
Rob,
The difference in speed of the front wheels in a turn is caused by the
friction between the tires and the
ground, plus the distance traveled by each. The differential gears are to
allow this to happen. If the
wheels are on a slick surface, one of them will slide causing a severe lack
of traction. Result BOOM.
Just my understanding and experience in crashing. LOL
Gary Kosier
77PB w/Cad500
Newark, Oh
-----Original Message-----
From: Robert Mueller
Sent: Sunday, January 26, 2014 7:50 PM
To: gmclist@temp.gmcnet.org
Subject: Re: [GMCnet] Limited Slip Differential
Espen,
This unit is not designed like "all" LSD or lockers.
I'll try explaining it another way.
You're going down an icy road and you come to a corner where you want to
make a right turn.
You turn the steering wheel to the right.
The inside wheel slows down while the outside wheel speeds up.
The spur gear attached to the axle on the curb side of the turn slows down
while the spur gear attached to the axle on the outside
of the turn begins to turn faster. The coefficient of friction of the blocks
against the spur gears is NOT high enough to force the
inside wheel to turn and force the vehicle to go straight. It is low enough
to allow them to turn at different speeds yet high
enough to force them to turn in unison on slippery surfaces going straight
ahead.
The "secret" is getting the spring tension correct to allow this to happen!
Think about this; who would be stupid enough to sell a unit that would stop
you from making turns safely under any conditions?
Regards,
Rob M.
Sydney, Australia
-----Original Message-----
From: Espen Heitmann
Yes and all of the above is just fine when you have traction on a asphalt
road, then all LSD or lockers will release due to the
frictions the tires have to the surface, however on a snowy or icey road
your traction will be minimal and the tires will have no
friction to the surface.
So what will happend ? the LSD will not release but lock up, and belive me,
you will not be able to make that turn.
Please prove me wrong :)
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
|
|
|
|
| Re: [GMCnet] Limited Slip Differential [message #237588 is a reply to message #237531] |
Sun, 26 January 2014 23:30 |
Adrien G.
Messages: 474
Registered: May 2008
Location: Burns Flat, OK 73624
Karma: 1
|
Senior Member |
|
|
| USAussie wrote on Sun, 26 January 2014 14:30 |
Espen,
I've created a new message so that people that have installed JimK's LSD can testify to what I've noted below.
I have seen JimK's LSD up close and personal and it is a simple device. It consists of four aluminum blocks and four springs. The
aluminum blocks are pressed up against the two spyder gears which are "connected" to the axles and makes them turn in unison when
you go straight. When you go around a corner the force on the spur gear on the outside of the turn is greater than the spring force
and it turns faster. There isn't anything to "engage" and make it go straight ahead in a turn.
Here's the link again so you can look at the LSD again: http://www.appliedgmc.com/products/full/876.jpg
Regards,
Rob M.
Sydney, Australia
-----Original Message-----
From: Espen Heitmann
The problem with a LSD on winter roads is if you try to make a turn and it engages you will go straight ahead, not a problem on rear
wheel drive vehicles, but on the GMC.. not a good idea.
That is why the ARB would have been a good solution as you can control when it is going to lock up the front diff 
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
|
Rob,
It's not just the springs and the blocks that make it a LSD.
The hubs of the Std side gears are straight and fit in a straight bore in the carrier.
The LSD side gears have tapered hubs that go into a cone bore in the carrier and the springs force preload the side gear tapered hub onto the carrier cones, which is where the driving force is transmitted through. The amount of slip or nonslip is controlled by the amount of spring preload.
The same way that a synchronizer works in a manual transmission.
Just trying to clear up how (I think) the unit works.
Adrien & Jenny Genesoto
75 Glenbrook (26-3) Mods LS3.70 FD / Reaction Sys / 80mm Front&Intermidiate / Hydroboost / 16" Tires / Frame Rebuild / Interior Rebuild
Yuba City,Ca. Text 530-nine-3-three-3-nine-nine-6
|
|
|
|
|
|
|
|
| Re: [GMCnet] Limited Slip Differential [message #237814 is a reply to message #237552] |
Tue, 28 January 2014 12:27 |
jhbridges
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
|
Senior Member |
|
|
Or if it goe ka-CHUNK and jumps about a foot when you start aroun dthe corner, and then goes CLUNK and jerks when you straighten out, you got a locker.
--johnny
From: Gary Worobec <gtw5@earthlink.net>
To: gmclist@temp.gmcnet.org
Sent: Sunday, January 26, 2014 6:47 PM
Subject: Re: [GMCnet] Limited Slip Differential
Jim's diff is similar to a Detroit locker or Richmond locker. It uses the
pressure of springs to mate 2 spur gears together to provide 2 wheel drive
in a straight line. The springs then allow the gears to move apart or slip
under the pressure in a left or right turn. A true LSD uses clutch packs
with alternating steel/fiber discs and a special diff oil that allows them
to slip when turning a corner but with enough friction to provide 2 wheel
drive in a straight line. If you hear a loud click, click, click from a
diff when the vehicle is turning it has a locker in it. I have had a locker
in my Geo Tracker for many years and its held up fine. No reason why it
should not be OK for the GMC.
Thanks,
Gary and Joanne Worobec
Subject: Re: [GMCnet] Limited Slip Differential
Espen,
I did not explain it clearly. The LSD that JimK sells is constantly engaged.
The aluminum blocks press on the spur gears constantly.
The force of the outside wheel turning faster than the inside wheel makes
the spur gear slip on the block pressing against it.
Regards,
Rob M.
Sydney, Australia
-----Original Message-----
From: gmclist-bounces@temp.gmcnet.org
[mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of Espen Heitmann
Nice Rob :)
So have anyone tried the JimK's LSD (Hmm.. that did sound kind of strange..)
on winter roads ?
Quote from Rob
"I have seen JimK's LSD up close and personal and it is a simple device. It
consists of four aluminum blocks and four springs. The
aluminum blocks are pressed up against the two spyder gears which are
"connected" to the axles and makes them turn in unison when
you go straight. When you go around a corner the force on the spur gear on
the outside of the turn is greater than the spring force
and it turns faster. There isn't anything to "engage" and make it go
straight ahead in a turn."
However Rob what makes the LSD engage ? one tire going faster than the
other, right ?
So what happend when you make a turn ? one tire is going faster than the
other..
In my mind the LSD do not know if you are making a turn or not, I could of
course be wrong :)
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
I forgive them all, save those who hurt the dogs. They must answer to me in hell
|
|
|
|
| Re: [GMCnet] Limited Slip Differential [message #237815 is a reply to message #237554] |
Tue, 28 January 2014 12:38 |
jhbridges
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
|
Senior Member |
|
|
Not gonna prove you wrong. I love to watch around here when the roads get icy, and all the guys with trucks with part - time 4WD try to motor around with the front and back hard locked together. It's usually a trip to the ditch.
--johnnhy
'76 23' transmode norris
'76 palm beach
From: Espen Heitmann <bimet@online.no>
To: gmclist@temp.gmcnet.org
Sent: Sunday, January 26, 2014 7:21 PM
Subject: Re: [GMCnet] Limited Slip Differential
Yes and all of the above is just fine when you have traction on a asphalt road, then all LSD or lockers will release due to the frictions the tires have to the surface, however on a snowy or icey road your traction will be minimal and the tires will have no friction to the surface.
So what will happend ? the LSD will not release but lock up, and belive me, you will not be able to make that turn.
Please prove me wrong :)
--
1973 26' Parrot green Seqouia in Norway
"Loffen" translates to white bread, it is also a nick name for your.. well you know..down there.. and it was my dog's name, but hey you can also call me Espen ;)
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
I forgive them all, save those who hurt the dogs. They must answer to me in hell
|
|
|
|
| Re: [GMCnet] Limited Slip Differential [message #237818 is a reply to message #237558] |
Tue, 28 January 2014 12:50 |
jhbridges
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
|
Senior Member |
|
|
Detrouit Gear Works will... or at least would.
--JOHNNY
From: Robert Mueller <robmueller@iinet.net.au>
To: gmclist@temp.gmcnet.org
Sent: Sunday, January 26, 2014 7:50 PM
Subject: Re: [GMCnet] Limited Slip Differential
Think about this; who would be stupid enough to sell a unit that would stop you from making turns safely under any conditions?
Regards,
Rob M.
Sydney, Australia
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
I forgive them all, save those who hurt the dogs. They must answer to me in hell
|
|
|
|
| Re: [GMCnet] Limited Slip Differential [message #238028 is a reply to message #237554] |
Wed, 29 January 2014 20:33 |
Bob de Kruyff
Messages: 4260
Registered: January 2004
Location: Chandler, AZ
Karma: 1
|
Senior Member |
|
|
| Loffen wrote on Sun, 26 January 2014 17:21 |
Yes and all of the above is just fine when you have traction on a asphalt road, then all LSD or lockers will release due to the frictions the tires have to the surface, however on a snowy or icey road your traction will be minimal and the tires will have no friction to the surface.
So what will happend ? the LSD will not release but lock up, and belive me, you will not be able to make that turn.
Please prove me wrong
|
There certainly are times that a LSD (no matter what mechanization) will be problematic. On very slippery surfaces, both wheels will spin allowing a total loss of control. They work best when the surface is still has enough friction for some level of traction. There are dozens of types of LSD's--clutch packs, worm gears, geroters, and now elctronically controlled units that eliminate any of the negatives. Most new vehicles simply use the ABS system to apply braking to the spinning wheel.
Bob de Kruyff
78 Eleganza
Chandler, AZ
|
|
|
|
| Re: [GMCnet] Limited Slip Differential [message #238029 is a reply to message #237614] |
Wed, 29 January 2014 20:38 |
Bob de Kruyff
Messages: 4260
Registered: January 2004
Location: Chandler, AZ
Karma: 1
|
Senior Member |
|
|
| SeanKidd wrote on Mon, 27 January 2014 09:27 |
I'm in the market for a lower ratio FD, and saw an exploded view of the 3.21 FD, I had wondered why the output shaft was different on these units... Is this differential considered a Torsen, since it has the sun gear versus the open spider gear?
|
Torsen differentials use worm gears and use the principal that it is difficult to back drive a worm gear.
Bob de Kruyff
78 Eleganza
Chandler, AZ
|
|
|
|
Goto Forum:
Current Time: Fri Apr 26 19:54:46 CDT 2024
Total time taken to generate the page: 0.03180 seconds
|
GMCforum
Search
Help
Register
Login
Home
