I'm going to be changing out my tranny and diff oil here but need to know the size of the crush washers I'm going to replace.

The shop manual says that on the tranny there are three plugs, Plug A, Plug B and the Filler Plug. When re-installing it only lists a new washer for Plug A - so do I just need that one? It also says to install all new plugs (e.g. "Install a new filler plug") although I don't see why this would be necessary, I don't replace my engine oil drain plug every time I change my oil. It also mentions applying sealant to Plug B (the one that apparently doesn't have a washer) - what kind of sealant should I get?

On the diff it says I'll need new washers for the Filler Plug and Drain Plug.

So I'm thinking I'll need 3 new crush washers and some sealant so I can complete this without having to borrow a car for a store run in the middle of it. Anyone have any idea what sizes the crush washers are?

Thanks!

 

You don't need any washers for any of it. The old ones will be fine.

 

If you do the rear diff, take the old ones and go to a parts store, they can match the size. I took mine to auto zone and they gave me copper ones, cost me about a buck. If your old ones aren't in that bad of shape, just use those.