Rear Diff crush washer orientation

[Jivewalker]

Going to change my rear diff fluid tomorrow and was wondering, does anyone know the proper orientation of the crush washer? Flat side to diff OR flat side to plug bolt?

 

[honda250xtitan]

just remember how it comes off :shrug:

 

[MossJenks]

I think I always do flat side toward bolt, but I don't think it matters.

 

[Muzzle of Bees]

Flat side towards the bolt. The other side goes to the side that might not be flat to help it conform. Sometimes I forget to check and never had one leak. I changed my front and rear differential fluids last week and reused the washers. No leaks and I don’t expect any.

 

[alphabeast]

I remember going through this when I changed mine. I am pretty sure the flat edge does face outward (towards the bolt), but I am agree it probably does not matter is you torque it to the right specs.

 

[fixer5000]

doesnt matter. youre gonna squash it flat anyway

 

[Lester Lugnut]

As stated - flat side towards bolt.

Same holds true for the transmission drain plugs and overfill plugs.

 

[Jivewalker]

Thanks for all the replies! Flat side towards bolt is the correct orientation (assuming it was done right to start). That was how the existing were installed.
Fresh severe gear in!

 

[STLDAVE]

The washer doesn't know the difference. Either way is fine.

 

[1000MPH]

Just don’t do this.