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95 Impreza: Front Differential Drain Plug/Washer question


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Hey all :)

 

I finally have time today and I really need to change my front differential oil (95 Impreza AWD automatic). I did some searching and am getting different results on if a crush washer is used on the differential drain plug. The owners manual says to use one, scooby mods doesn't say, and an old thread on here said that a non-crush washer was used from the factory.

 

So the question of the day: Is a crush washer used on the front differential drain plug, and if so, what size!

 

Thank you for your speedy responses!

 

Kevin

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In my experience, over fifteen years, the drain plugs on Sube transmissions has always been a "regular" washer. Either copper or aluminium, which will crush to some extent. Always replace them.

Only the spark plugs and oil pan use crush washers. Always replace these too!

 

I am sorry, but I can't help on the exact size, but I expect the inner diameter to be around 20mm.

3mm wide washer, and 1-2mm thick.

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