Jump to content
Email-only Log-Ins Coming in December ×

IGNORED

differential insulator early one


Recommended Posts


I was hoping someone might have one left here as a spare or something willing to sell?

Really want to keep it original with a new strap. At least the straps are still sold..

I now welded the old mount together but this will give vibrations. It's just temporary to keep the diff nose in place.

If I can't find the early mount then i will have to look for a solution to insulate the early type mount another way. ?

 

Link to comment
Share on other sites

The one I previously offered is tentatively now slated for use on an early 70 project I’m working on this winter. If I can convince the customer to “upgrade” to the later diff position to straighten the axle geometry, then this isolator will become available, but I won’t know that for a few weeks or months. Maybe not much help, but at least there is some hope.

Link to comment
Share on other sites

How different are they?  Could somebody enlarge or move the holes on a newer one to get it to work correctly in the older application? 

If you have both maybe you could take some measurements and add to your modification program.

Link to comment
Share on other sites

On 8/29/2020 at 7:44 PM, Zed Head said:

How different are they?  Could somebody enlarge or move the holes on a newer one to get it to work correctly in the older application? 

If you have both maybe you could take some measurements and add to your modification program.

I will let it know here if it works. 

Link to comment
Share on other sites

  • 2 weeks later...

Picture #2 (below) shows the bottom surfaces (front of car points up)... early type (55415-E4102) on the left, later type (55413 E8301) on the right...

Enter “differential insulator” in the search function, and you will find a wealth of information about these

insulators.

S30 Differential - Front Mount Insulators - OE - 240Z early vs late - bottom.jpgx

Edited by AZ-240z
Link to comment
Share on other sites

I remember trying to find an illustration for the diff mount and the transmission mount.  The best I could do was to assume that the mounts go in with the sloped side facing forward.  Like a snow plow or a wedge.  I only found one picture that showed that and had to rationalize that the diff mount would be the same.

It seemed to make sense when I was actually looking at the parts before installing.  Here is the only picture that seems to illustrate that, from 1976.  Nissan calls the transmission mount the rear insulator. 

image.png

Link to comment
Share on other sites

On 8/29/2020 at 7:16 AM, zKars said:

The one I previously offered is tentatively now slated for use on an early 70 project I’m working on this winter. If I can convince the customer to “upgrade” to the later diff position to straighten the axle geometry, then this isolator will become available, but I won’t know that for a few weeks or months. Maybe not much help, but at least there is some hope.

Seems “we” are staying stock so the one I have is off the table. 

Hmmm... I “could” chop the crossmember up and weld it back together with the center “offset” forward, that let’s me use the later isolator....  Done that to standard Z trans x-members to fit the T-5 transmission. Not exactly an invisible modification, but likely workable.

Or,  If it wouldn’t melt the rubber, I could weld/move/adjust the position of the diff mounting holes on a later isolator to let you use it. Very slow welding with rapid cold water immersion every 5 seconds of welding????  

Where there’s a will, there’s a way; and relatives.... 

 

Edited by zKars
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
  • Recently Browsing   0 members

    • No registered users viewing this page.
  • Who's Online   2 Members, 0 Anonymous, 440 Guests (See full list)

×
×
  • 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.