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1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

How do I get the rear diff fill plug out?

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Old Aug 14, 2003 | 03:12 PM
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How do I get the rear diff fill plug out?

It is a big square and I tried sticking my 1/2" drive into it and was too larger, 3/8" is too small.

Is there a bit/special tool for this?

Thanks!
 
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Old Aug 14, 2003 | 04:17 PM
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How do I get the rear diff fill plug out?

crescent wrench
 
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Old Aug 14, 2003 | 04:20 PM
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How do I get the rear diff fill plug out?

Nono, it is like a backwards square. It doesn't stick out.
 
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Old Aug 14, 2003 | 04:23 PM
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How do I get the rear diff fill plug out?

I had a tough time getting the plug out on my 93...On my year of vehicle it is in fact a 3/8 inch square by mine was rounded out quite badly...I ended up getting an air chisel put to the edge of it to start it turning...Some people say to use heat around the diff casing. If worse comes to worse you could weld a bolt to the plug for something to hang on to.

WHaynes

-93 F150-
 
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Old Aug 14, 2003 | 04:31 PM
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How do I get the rear diff fill plug out?

Well I did try just to put an extension in there, I will go back clean it up a bit more and try to get it out.

Thanks for that weld-a-bolt on idea!
 
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Old Aug 14, 2003 | 04:37 PM
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How do I get the rear diff fill plug out?

I've actually used an extension with a nice 18" breaker bar. Worked beautifully!!
 
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Old Aug 14, 2003 | 04:44 PM
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How do I get the rear diff fill plug out?

18" breaker bar! That is a lot of work...I'll just let my impact gun do that. lol!
 
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