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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:

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 :)

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[Message index]

		[GMCnet] Limited Slip Differential By: USAussie on Sun, 26 January 2014 14:30
		Re: [GMCnet] Limited Slip Differential By: Loffen on Sun, 26 January 2014 15:03
		Re: [GMCnet] Limited Slip Differential By: USAussie on Sun, 26 January 2014 17:17
		Re: [GMCnet] Limited Slip Differential By: Gary Worobec on Sun, 26 January 2014 17:47
		Re: [GMCnet] Limited Slip Differential By: Loffen on Sun, 26 January 2014 18:21
		Re: [GMCnet] Limited Slip Differential By: USAussie on Sun, 26 January 2014 18:50
		Re: [GMCnet] Limited Slip Differential By: jim kanomata on Sun, 26 January 2014 19:42
		Re: [GMCnet] Limited Slip Differential By: USAussie on Sun, 26 January 2014 20:00
		Re: [GMCnet] Limited Slip Differential By: Loffen on Sun, 26 January 2014 20:33
		Re: [GMCnet] Limited Slip Differential By: Bullitthead on Sun, 26 January 2014 21:47
		Re: [GMCnet] Limited Slip Differential By: USAussie on Sun, 26 January 2014 21:48
		Re: [GMCnet] Limited Slip Differential By: Kosier on Sun, 26 January 2014 22:51
		Re: [GMCnet] Limited Slip Differential By: jhbridges on Tue, 28 January 2014 12:50
		Re: [GMCnet] Limited Slip Differential By: jhbridges on Tue, 28 January 2014 12:38
		Re: [GMCnet] Limited Slip Differential By: Bob de Kruyff on Wed, 29 January 2014 20:33
		Re: [GMCnet] Limited Slip Differential By: jhbridges on Tue, 28 January 2014 12:27
		Re: [GMCnet] Limited Slip Differential By: Adrien G. on Sun, 26 January 2014 23:30
		Re: [GMCnet] Limited Slip Differential By: SeanKidd on Mon, 27 January 2014 10:27
		Re: [GMCnet] Limited Slip Differential By: Bob de Kruyff on Wed, 29 January 2014 20:38
		Re: [GMCnet] Limited Slip Differential By: Matt Colie on Mon, 27 January 2014 11:00
		Re: [GMCnet] Limited Slip Differential By: Bob de Kruyff on Wed, 29 January 2014 20:44
		Re: [GMCnet] Limited Slip Differential By: Matt Colie on Thu, 30 January 2014 08:29
		Re: [GMCnet] Limited Slip Differential By: Keith V on Thu, 30 January 2014 11:27
		Re: [GMCnet] Limited Slip Differential By: sgltrac on Thu, 30 January 2014 12:49
		Re: [GMCnet] Limited Slip Differential By: Matt Colie on Thu, 30 January 2014 13:10
		Re: [GMCnet] Limited Slip Differential By: Bob de Kruyff on Fri, 31 January 2014 10:35
		Re: [GMCnet] Limited Slip Differential By: James Hupy on Fri, 31 January 2014 11:00
		Re: [GMCnet] Limited Slip Differential By: sgltrac on Fri, 31 January 2014 12:13
		Re: [GMCnet] Limited Slip Differential By: mikethebike on Fri, 31 January 2014 12:27
		Re: [GMCnet] Limited Slip Differential By: SeanKidd on Fri, 31 January 2014 14:25
		Re: [GMCnet] Limited Slip Differential By: USAussie on Fri, 31 January 2014 16:34
		Re: [GMCnet] Limited Slip Differential By: Bob de Kruyff on Fri, 31 January 2014 16:42
		Re: [GMCnet] Limited Slip Differential By: Loffen on Thu, 30 January 2014 11:54
		Re: [GMCnet] Limited Slip Differential By: USAussie on Thu, 30 January 2014 15:39
		Re: [GMCnet] Limited Slip Differential By: Loffen on Thu, 30 January 2014 16:30
		Re: [GMCnet] Limited Slip Differential By: USAussie on Thu, 30 January 2014 16:55
		Re: [GMCnet] Limited Slip Differential By: Loffen on Thu, 30 January 2014 17:35
		Re: [GMCnet] Limited Slip Differential By: WD0AFQ on Thu, 30 January 2014 17:47
		Re: [GMCnet] Limited Slip Differential By: Loffen on Thu, 30 January 2014 18:40
		Re: [GMCnet] Limited Slip Differential By: sgltrac on Fri, 31 January 2014 08:33
		Re: [GMCnet] Limited Slip Differential By: Ken Henderson on Fri, 31 January 2014 12:54
		Re: [GMCnet] Limited Slip Differential By: sgltrac on Fri, 31 January 2014 13:37
		Re: [GMCnet] Limited Slip Differential By: Carl S. on Fri, 31 January 2014 19:16
		Re: [GMCnet] Limited Slip Differential By: sgltrac on Fri, 31 January 2014 21:21
		Re: [GMCnet] Limited Slip Differential By: Carl S. on Fri, 31 January 2014 21:54
		Re: [GMCnet] Limited Slip Differential By: SeanKidd on Fri, 31 January 2014 18:55
		Re: [GMCnet] Limited Slip Differential By: USAussie on Fri, 31 January 2014 19:02
		Re: [GMCnet] Limited Slip Differential By: SeanKidd on Fri, 31 January 2014 19:26

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