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Re: differential draining and refilling

To: "A. B. Bonds" <>
Subject: Re: differential draining and refilling
From: Kevin Sullivan <>
Date: Mon, 15 Jan 1996 10:43:48 -0600 (CST)
On 15 Jan 1996, A. B. Bonds wrote:

> In <>, Matt Liggett wrote:
> >I have no tool which will fit in the odd recessed square hole.  What 
> >do I buy?  And where can I get it?
> Go to K-Mart or your favourite Chinese tool store and get a short 1/2"
> socket extension.  Take it into your shop and grind a little off each
> side of the male end (ouch!).  Season to taste.

Ouch, indeed.  If you would rather not do something so drastic, go to a 
real hardware store and they will have square keys for perhaps less than 
the price of a cheap short 1/2" extension (if such a thing can be found; 
that stuff is usually sold in sets, as the price of packaging probably 
dominates).  What I got was a piece of steel 7/16"x7/16"x2".  You stick 
it in the hole, put a wrench on it and there ya go.  Just measure and see 
what size you need.  Most American cars I've worked on had 1/2" keyed 
plugs, so you could just use a 1/2" drive ratchet.


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