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Help -Diff, Fluid change

Old Jun 11, 2007 | 06:01 PM
  #1  
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guitarpicr
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Help -Diff, Fluid change

Hey guys - Im changing my diff fluid and puttin on my new alum. diff cover. How do you know if I have limited slip or not? I bought the xl-3 additive but now Im not sure weather to put it in or not. Read somewhere to add 2 oz. then try it before adding the other 2 oz. I bought the Motorcraft 75W-140 syn. lubricant. My truck is a 2wd - 2002 - F-250. New cover looks sharp. I'll get some pics when Im all finished. Thanks, Bill
 
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Old Jun 11, 2007 | 06:15 PM
  #2  
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rebelchevy02
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Easiest way, is to jack up the truck from the punkin (middle section) and with both tires off the ground, and it in park, try to spin the tire. If its difficult, or not possible, then you have a limited slip, if immediately the other tire spins the other way, you have an open differential.
 
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Old Jun 11, 2007 | 06:26 PM
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Uzumati
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From: Central, Al
There should be a tag on the diff with a number like this "3L55"

3 = 3.73
L = Limited Slip.
 
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Old Jun 11, 2007 | 07:03 PM
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Thanks Guys - Alan - the tag says ( I think) 3L73 10 5 1F29 - I guess that is the LS. I really appreciate the help as usual . If anyone can tell me how to become a supporter of this site .- I cant find the link. Thanks, Again - Bill
 
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Old Jun 11, 2007 | 07:17 PM
  #5  
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Uzumati
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From: Central, Al
That would be a 3.73 Limited Slip with 10.5" ring gear

Click on anyones supporter tag or go to user CP and click on Paid subscriptions
 
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