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Author
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Topic: '90 LX 5.0 Rear End
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mvendl
Gearhead Posts: 161
From: Lowell, IN, USA
Registered: Oct 2000
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posted 04-15-2003 11:11 AM
   
Ok, I'm sure this has been talked about before, but I cant find anything good and am probably just blind. Dont flame me  .. Ok, here goes.I have a leaky rear axle cover, In fact, I'm sure that over the winter all of the gear oil has dripped out due to this condition. Well, I plan on replacing the gasket (No biggie right...?) Well, I go to buy a gasket and ask the guy at carquest for the appropriate gear oil for my car. Well, I'm now presented with a problem. He asks me if I have a "limited-slip" rear end or not. Well, I felt pretty stupid 'cuz i've got no clue. What is the best way to tell? He told me that 90W was what I should use but if it was limited slip, and I put in the wrong gear oil, it'd mess up the rear end. Any help/suggestions would be most excellent. I can get the code off of the rear end if necessary, it's pretty easily accessible on the rear end cover.... many thanks, --mark
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'66 Mustang Coupe
'90 Mustang LX 5.0 Convertible
'85 F150 XLT 302
'97 Ranger XLT extended cab
'96 GMC Jimmy 4X4 (the wife's)
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SteveLaRiviere
Administrator Posts: 32655
From: Saco, Maine
Registered: May 99
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posted 04-15-2003 04:49 PM
On the tag, a limited slip is indicated by a L in the gear ratio, like 3L27 would be a 3.27 Limited Slip, while a 3 27 would not. ------------------
'70 Mustang Mach 1 - '72 Mustang Sprint - '94 F-150 Please remember our sponsors,
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mvendl
Gearhead Posts: 161
From: Lowell, IN, USA
Registered: Oct 2000
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posted 04-16-2003 12:12 AM
Steve - That makes sense, although now I'm a bit confused. I looked at the rear end tag this evening when I got home. Below is what I was able to glean from it. (It's a bit hard to read so some may be questionable) S6215 A
173 A88 9H26 I'm thinking that the 173 could be L73 but I'm not sure. Does any of the above make sense?.. If so, can someone decode it for me? Many thanks. --mark
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Seaya
Journeyman Posts: 1
From: Lancaster, Wi USA
Registered: Apr 2003
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posted 04-17-2003 02:26 AM
Here is a list of the axle codes as they appear on the door.2.73 M Traction lok
2.73 8 open
3.08 Z Traction lok
3.08 Y open
3.27 E Traction lok
3.27 5 open Again, this code is located on the door and are used from 1986-1993 (atleast) Hope this helps. Scott
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mvendl
Gearhead Posts: 161
From: Lowell, IN, USA
Registered: Oct 2000
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posted 04-17-2003 11:25 PM
Scott - Thanks for the help. From the door tag, I get the below:Body | VR | MLDG | Int Trim | Tape | R | S | AX | TR
LXC | A | X | DJ | P | 9 | | M | TQQTT So, I gather from your post that my Axle = 2.73 Traction Lok Rear end. Would this mean then that it is a limited slip rear end? Basically, I need to know what type and weight of gear oil that I need. Heh, last question... If I swap this 2.73 out for a 4.10 as I plan, will that change the type of gear oil that I will use? thanks, --mark
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Stewart
Moderator Posts: 9155
From: Monterey, CA Mustangsandmore Member #437
Registered: Apr 2000
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posted 04-18-2003 01:01 AM
I believe all 5.0 HO Mustangs with 8.8's are traction lock diffs.According to my Haynes Manual, SAE 90 hypoid lubricant is used in the rear diff. And no, it doesn't matter what numerical gear you have. Stewart [This message has been edited by Stewart (edited 04-18-2003).]
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mvendl
Gearhead Posts: 161
From: Lowell, IN, USA
Registered: Oct 2000
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posted 04-18-2003 09:55 AM
Stewart, you rock. many thanks on the clarification.thanks, --mark
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