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frecku 09-29-2013 03:16 AM

Rear differential drain plug
Used a 1/2" drive socket to remove the differential plug, now it is almost stripped and do not trust it to tighten properly.:28:

Need the OEM part # for a 96 Subaru Legacy Outback 2.5L rear differential fill plug, what I was able to locate is part # 383375200 but a cross reference on Ebay states it will not fit my specs.:(

No luck on Subaru parts online either.:confused:

Are both fill and drain plugs the same ?

RobLog 09-29-2013 01:35 PM

According to the parts diagram in the link, part# 383375200 is correct. It's item #30 in the drawing and was in use from 1994-1999, so it should fit your 96.

frecku 09-29-2013 01:51 PM

Thanks, I took the chance and ordered one online, this is yet another time that the pull down menu on EbayMotors was incorrect.:D:D:D

Love your site, even Subaru site did not have it listed.

RobLog 09-29-2013 04:01 PM

Yeah, that's a handy site. Bookmark it if you haven't already.

"Pull down menus" and fitment charts at retail websites and even brick-and-mortar stores are rarely complete and can be misleading. This doesn't apply to your case, but going direct to the manufacturer to check fitment is always a good idea before ordering or buying anything.

grossgary 09-30-2013 07:25 AM


Originally Posted by frecku (Post 973289)
Used a 1/2" drive socket to remove the differential plug, now it is almost stripped and do not trust it to tighten properly.:28:

it's usually not the plug itself that strips, it's usually the threads in the diff backing plate that will strip.

replace just the plug won't fix it - you'll likely need to repair the threads.

or replace the rear diff backing plate.

tdelker 09-30-2013 12:28 PM

I suspect he means the square hole is stripped.

frecku 09-30-2013 12:38 PM

Thank goodness it is not the plug that is stripped, only the square drive. There was a great post here explaining the need for a 13mm square lug, the 1/2" drive could be used being a compromize of 12.7mm.

In my case I used an impact gun that did the damage, in fact it did not loosen the plug at all. What I ended up doing is placing a 1/2" breaker bar arm on a car jack, lifted the car up then pressed down on the hood to break it free.:gasp::gasp::gasp:

grossgary 09-30-2013 02:44 PM

nice hit!

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