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post #1 of (permalink) Old 01-08-2002, 05:36 PM Thread Starter
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Torsen Traction?

Anyone heard anything on these? They're the lockers they put in the Hummers. I heard about them from that "How Stuff Works" site. They look pretty kewl. Don't have any available for Dana's, but do have them for 8.8" and 9" rear ends. How do they work? I read their website, but go little info.

http://www.torsen.com/

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post #2 of (permalink) Old 01-08-2002, 08:06 PM
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Re: Torsen Traction?

Torsen lockers are also known as worm-drive lockers (arguably a slight misnomer) and are also known as Detroit True-tracs. Not tracloks, which have clutches a la traditional limited slips...but true-tracs. Lotsa info on them on the board...never used one myself, but I understand that they are more durable than traditional limited slips, and more forgiving than locking differentials...but not quite as effective. They work best when 'modulated' (or fooled into having some reaction to the torque otherwise being used to spin an 'unloaded' tire (tire with no traction) by stepping lightly on the brake pedal.

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post #3 of (permalink) Old 01-08-2002, 08:41 PM
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Re: Torsen Traction?

torsens were the locker to have around 1985 but big bucks... I bought two one for my old 30 front end and one for my rear 44...about a week after I put them in I figured I put them to the test so I was jumping up off a logging road ..try to climb the bank and blew the 30 torsen had a good warrenty so I figured why not go bigger as long as they were buying so thats when I went to the 44 front...and that 44 front torsen is still as good as new works great...I blew the rear torsen after about five years and went back to welded....I didn't even know they still made the things..... they had problems holding them together in the 30 and 44's and just gave up making them I guess

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post #4 of (permalink) Old 01-08-2002, 08:58 PM
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Re: Torsen Traction?

Here are some pics of a Torsen LSD, straight from a Hummer.




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post #5 of (permalink) Old 01-08-2002, 09:36 PM
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Re: Torsen Traction?

I had one that I bought for my Dana 30 and then sold it because it was for taller gears. It looked pretty neat. Here's a link that I found:

http://members.rennlist.com/951_racerx/PS84Gleason.html

I think it's good for front axles since it won't bind steering as much. The Tru-Tracs are based on the design of the original Torsens.


-Jay
Denver, CO
1978 CJ-5 258 Weber, 'glass body, 6.32 low Ford/Scout T-19, 2.46 low Scout/Ford/Jeep Dana 20
post #6 of (permalink) Old 01-09-2002, 12:20 AM
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Re: Torsen Traction?

I recomend to anyone interested in the engineering of cool stuff to read the article that Jay has linked to. Fascinating stuff!


Mike H.
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