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Differential Cover Plug Alternative

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Old Apr 1, 2012 | 07:36 PM
  #1  
Fauvette's Avatar
Fauvette
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Heel & Toe
 
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From: Newport Rhode Island
Default Differential Cover Plug Alternative

Hi,

I was planning to replace my differential fluid today -- and getting the plug off was a major headache. Initially I tried a 18MM 12pt socket -- but it started to strip the square plug. Then I removed the spare tire and was able to get the plug out with a wrench. After adding posi fluid and topping it off with gear oil (the cheap "pump" I got at Walmart was not working so I will have to peform the fluid change next weekend...)
I put the plug back in with a wrench -- but was not able to get it all the way back in fear I would strip it even more.

Now my question: Is there an alternative to the square replacement plug ($12 at Ecklers)? I figure it will give me the same kind of trouble. I would rather have something that will make my differential more "serviceable" and work with regular sockets. Alternatively, where would I find a square socket to work with the plug?

Many thanks.
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Old Apr 1, 2012 | 08:01 PM
  #2  
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Paul L
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From: Ontario
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For that square plug you need a 5/8", 8-point socket (not 6 or twelve).



It works very well. The breaker bar was necessary after 97,000 miles. The plug went back in with anti-seize.


Last edited by Paul L; Apr 1, 2012 at 08:17 PM.
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Old Apr 1, 2012 | 09:19 PM
  #3  
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bluthundr
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From: Fort Wayne IN
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I think it is NPT threads, but I don't know off hand what size, so you could use whatever pipe thread plug you like with Teflon instead of the special shouldered plug.
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Old Apr 2, 2012 | 11:32 AM
  #4  
69 Chevy's Avatar
69 Chevy
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From: Lehigh county Pennsylvania
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I have always used a crow foot wrench. Mine is Snap-On but I'm sure Sears sells them too.

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