Another "low profile" option, that is also cheap, is to use an old 17mm head nut, and a standard 17mm box wrench. Put the nut through the wrench first, up to the self washer, then put the wrench and nut into the hole in the drain plug.

  That has been my solution for differential fill port access for the past 12 years. I discovered this as I was casting about in desperation for a way to get that damn plug out - I broke two 17mm bolt and nut "sets" that I locked together, before I gave up on that approach, and tried for something else. Ingenuity and desperation can provide quite the incentive.... ;-P

Mike Collum <collum@VERIZON.NET> wrote:
  There are always advantages and disadvantages, trade offs, if you will.
My "Cut off" Allen and gear wrench allows the drain plug to be removed
from Syncros without having to completely remove the skid plate (Ask
Paul Guzyk).

My cut off gets into the tight spaces easier and, though I have a 17mm
socket, I don't use it for transmission drain and fill plugs anymore.

Mike

Jake de Villiers wrote:
> The good thing about having the proper Allen socket is that it fits my 1/2"
> breaker bar and the upper control arms too. :)
>
> On Nov 17, 2007 10:39 AM, Mike Collum wrote:
>
>> It's a 17mm Allen.
>>
>> I bought a regular "L" shaped Allen wrench and cut a short piece off. I
>> insert that short piece into the plug and turn it with a gear wrench.
>> To me, it works much better than the Allen "Sockets" sold for this
>> purpose.
>>
>> Mike
>>
>>
>>
>> Jeff Clayman wrote:
>>> Hi,
>>>
>>> I have a female type nut in my differential fill hole for my 87 a/t 2.1.
>> Anybody know what the wrench to get this out is called? Part #?
>>> Jeff
>>>
>
>
>
> --
> Jake
> 1984 Vanagon GL
> 1986 Westy Weekender "Dixie"
> Crescent Beach, BC
> www.crescentbeachguitar.com
> http://subyjake.googlepages.com/
>