Jump to content

IGNORED

R180 Diff Plugs 240Z


adivin

Recommended Posts

Does anyone else's diff fill and drain plugs look like this?  I stumbled on the fact many other's and pics in FSM look recessed.  When I searched for replacements, they are not this type.  I'm trying to figure out if this is normal or not.

Have a great Memorial Day!

R180 Diff.jpg

Link to comment
Share on other sites

Diff wise, it helps if (for the lower one) you have the "outie " style as far as getting a wrench on it to take it out, as it points at the transverse link bar. 

What really matters is to put the one with the magnet in the bottom hole. That and having it fit and not leak..... As to what is "correct" factory wise, I leave that to the historians.

Transmission wise I usually see an outie on the fill hole and innie on drain hole. 

  • Like 1
Link to comment
Share on other sites

1 hour ago, adivin said:

Thanks for the info.  I await the historians.

Somebody stuck a fill plug in the drain hole, probably because the socket type drain plug is a pain to remove.

Browse through these listings, below, and you'll find a few pictures of the original setup. I don't think that Nissan did any "one-off" plug arrangements.

You should post the replacements that are not of this type just so that people can see them.  Might be an aftermarket guy offering an improvement.

https://bringatrailer.com/datsun/240z/?q=240z

Link to comment
Share on other sites

10 hours ago, Zed Head said:

Somebody stuck a fill plug in the drain hole, probably because the socket type drain plug is a pain to remove.

Browse through these listings, below, and you'll find a few pictures of the original setup. I don't think that Nissan did any "one-off" plug arrangements.

You should post the replacements that are not of this type just so that people can see them.  Might be an aftermarket guy offering an improvement.

https://bringatrailer.com/datsun/240z/?q=240z

Odd thing is that the drain plug does have the magnet on the inside, so it's not just a fill plug. The fill plug has no magnet. This car has been in my family since new and I can't conceive when or why the plugs would have been changed out.

Link to comment
Share on other sites

Pickup trucks used the 4.11.  240Z's did not come with a 4.11.  Nissan might have went with the recessed plug for looks.  They even built a special shield just to cover a bolt head in the back on later cars.  On a truck an ugly square head is not such a big deal.

But, Whitehead is just using the same R180 picture for all of his R180 listings.  So, who knows what's what there.

https://whiteheadperformance.com/product/nissan-oem-3-54-r180-diff-differential-used-datsun-240z-260z-280z-280zx-510/

https://whiteheadperformance.com/product/nissan-oem-3-70-r180-diff-differential-used-datsun-240z-260z-280z-280zx-510/

https://whiteheadperformance.com/product/nissan-oem-3-90-r180-diff-differential-used-datsun-240z-260z-280z-280zx/

https://whiteheadperformance.com/product/nissan-oem-4-11-r180-diff-differential-used-datsun-240z-260z-280z-280zx/

78 280Z with bolt head shield.

image.png

Whithead's label implies it's just a stock photo he picked up somewhere.

image.png

Edited by Zed Head
Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
×
×
  • Create New...

Important Information

By using this site, you agree to our Privacy Policy and Guidelines. We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.