C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

D44 Rear Diff. Plug

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Old Aug 24, 2003 | 08:21 PM
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Default D44 Rear Diff. Plug

Does anyone know the hex head wrench size for the rear differential plug on a Dana 44?
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Old Aug 24, 2003 | 08:36 PM
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Default Re: D44 Rear Diff. Plug (STL94LT1)

3/8" comes to mind, the problem is I had mine out recently but my 5/16 & 3/8 allen wrenches are still laying out on the bench & I'm not positive which one I used. :confused:
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Old Aug 24, 2003 | 08:44 PM
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Default Re: D44 Rear Diff. Plug (superlund)

It must be 3/8, just tried 5/16 and it was too small. My luck, my hex head set only goes up to 5/16.

Thanks
MP
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Old Aug 24, 2003 | 09:23 PM
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Default Re: D44 Rear Diff. Plug (STL94LT1)

I think it is actually a 12mm. I guess that is close enough to a 3/8" though. Can someone confirm if the 3/8" works?

Mike
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Old Aug 24, 2003 | 10:07 PM
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Default Re: D44 Rear Diff. Plug (luvmy92)

Just for you guys I went out and got under the car. The 3/8" allen wrench fits perfectly. A 10mm allen wrench will not fit at all.....
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Old Aug 24, 2003 | 10:27 PM
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Default Re: D44 Rear Diff. Plug (superlund)

Can you believe I had a 3/8 the whole time? :) I used my channel locks to get the damn thing open.

Mike
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Old Aug 24, 2003 | 11:00 PM
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Default Re: D44 Rear Diff. Plug (luvmy92)

Tisk-Tisk, around here just ask! :thumbs:
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Old Aug 25, 2003 | 03:35 AM
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Default Re: D44 Rear Diff. Plug (STL94LT1)

Out of curiosity, if you are changing the diff fliud, I would like to know if you removed the rear cover or are planning to suction out the goo through the fill plug. Also - what fluid are you using?
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Old Aug 25, 2003 | 07:05 AM
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Default Re: D44 Rear Diff. Plug (aggie88)

I believe you can suction it out of the diff (ski down it uses a shop vac) but if you are swapping gears, go ahead and put in a drain hole nn the bottom bolt hole of the cover.

Edit: Oh yeah, I use Amsoil 75-90 Synthetic. Some guys use the Mobil 1 with the same weights.

Mike


[Modified by luvmy92, 6:06 AM 8/25/2003]
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