ford factory part number for torsen? - Ranger-Forums - The Ultimate Ford Ranger Resource


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  #1  
Old 02-03-2008
06fx4 L2's Avatar
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ford factory part number for torsen?

does anyone know what it is? i just took my level 2 to ford and they replaced the differencial, well they put friction modifyer in... why would a torsen need that?? the part number they put in is 3l5z*4026*aa. i looked it up on a ford parts site and came up with "Differential assy, ranger, w/locking differential, 8.8" ring gear, w/fx4 off road pkg." the only other options are "Differential assy, ranger, w/locking differential, 8.8" ring gear, w/o fx4 off road pkg. " and "Differential assy, ranger, w/locking differential, 7.5" ring gear" why no open diff option? so im wondering if the tech was just an idiot.. lol and maybe since the first fx4 was basically a level 2 they just cept the parts as fx4 offroad package meaning the new level 2.. ??? since the level one is basically a regular 4x4.... i dunno

any help would be awsome


o and the reason they replaced it was because there was ALOT of slack in the rear end, when i would leave from a stop there was a noticable delay and then a clunk. took them three tryes to fix it, lol i told them what was wrong when i first brought it in too.. buit noooooooooooo!

JOSH
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  #2  
Old 02-03-2008
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The clunk would have more to do with the ring and pinion set up then the Torsen. I dont' know the PN but I'm guessing the Torsen needs friction modifier. My Ford manual says add 4 oz's of friction modifier if equipped with FX4 package.
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Old 02-04-2008
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ya it was the lash, i dont know why they replaced the torsen. maybe to do with the old recall on the toren? who knows.

ya thanks i did some searches in google and found that others have said the same thing about the friction modifyer, its for noise or something
JOSH
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Old 02-04-2008
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Friction modifier is added to Ford's Traction-Lok LSD to prevent clutch chatter while turning. The gear type Torsen LSD does not require friction modifier.
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Old 02-04-2008
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All it needs is 75W-140 full synthetic gear oil, no friction modifiers needed. I just changed mine...Mobil 1 is #1.
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  #6  
Old 02-04-2008
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Is the Torsen just a automatic locking diff? whats the difference vs a LSD?
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Old 02-04-2008
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Quote:
Originally Posted by RageRanger View Post
Is the Torsen just a automatic locking diff? whats the difference vs a LSD?
No it is a gear driven limited slip.
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  #8  
Old 02-04-2008
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I hate mine......it tends to not work that well when I need it to. All it's really good at is making TWO black marks on the hyway instead of one!
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Old 02-04-2008
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well so far i love mine, it almosts feels like electronic traction controll. i can feel it tranfering power and also its never let me peg leg it. i did some more reading and although it doesnt need the friction modifyer, ford recomendes it for gear noise.. weird

Last edited by 06fx4 L2; 02-05-2008 at 12:08 AM.
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Old 02-05-2008
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Quote:
Originally Posted by 06fx4 L2 View Post
well so far i love mine, it almosts feels like electronic traction controll. i can feel it tranfering power and also its never let me peg leg it. i did some more reading and although it doesnt need the friction modifyer, ford recomendes it for gear noise.. weird
What is your source for that info?
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  #11  
Old 02-05-2008
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damn i dont rember now, it may have been a tsb, and then someone read it in theier owners manual also.....

ok i found out one of the places, it was on torsens website for GM aplications. it was a GM tsb


??

JOSH
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  #12  
Old 02-05-2008
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Dude, our Torsens dont require a friction modifier. Thats one of the benefits of a worm gear differential...I'll look up what you said about it though....

Took you long enough to get it looked at! Damn!
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  #13  
Old 02-06-2008
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http://www.torsen.com/general/genera...0-%20Level%202

there you go. thats the torsen site. friction modifier was used in the rear ends of camaros.... search on and youll be able to identify the number on your diff...
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  #14  
Old 02-06-2008
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All I have to say about the Torsen is it's a worthless piece of crap better suited as a paperweight.
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  #15  
Old 02-06-2008
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^Mine works better in my truck then my desk. I'm guessing you've had problems.
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  #16  
Old 02-06-2008
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jus swap in a spool. alot less problems!!!

except maybe chewing through a nice set of tires in no time at all.
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  #17  
Old 02-06-2008
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Quote:
Originally Posted by rolsmojave3 View Post
^Mine works better in my truck then my desk. I'm guessing you've had problems.
Yeah, big problems with mine. It decided to do this at 35-40mph back in Nov.


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  #18  
Old 02-06-2008
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NICE!i!i!i!
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  #19  
Old 02-07-2008
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sweet.... first one ive heard that has exploded, nicly done.

and i have a spool in my mustang, no need for one in my DD!!

JOSH
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  #20  
Old 02-07-2008
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Mine blew up too.....bad. Locked right wheel up going down the road. I want to remove it and get a air or electric locker. Anyone know how much $$ it would take?
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  #21  
Old 02-07-2008
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Quote:
Originally Posted by jdpartsman99 View Post
Mine blew up too.....bad. Locked right wheel up going down the road. I want to remove it and get a air or electric locker. Anyone know how much $$ it would take?

arbs and auburns run between about 400-600 plus install. over the summer I am planning arb rear torsen front (if they finaly produce it) with 4.56 gears and 33s.
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  #22  
Old 11-11-2016
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If that's a Torsen as in the pictures of that trashed differential... it was either defective or it was submerged in water and fluid was never Changed?? Or you are WAY hard on your differential??? Which I'd figure you'd break u joints before doing that kind of damage ??? Did it come stock from factory in your truck??? If so how many miles on it???
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