Spare tire hold down identification

[zed2]

Please help me identify the bottom spare tire hold down in the attached photos.  (I believe the top spare tire hold down is for the 240Z.)

Thanks,

Keith

[siteunseen]

This is my oe '72.

That's a ratty spare I have in there but it's got a good 14" tire so function over fashion for me.

Edited December 4, 2021 by siteunseen

[siteunseen]

I think that curve is for the ZX.? Pretty sure my '77 is flat too.

My one day wish is to find the early one with rubber on the circle piece.

Edited. Its gotta be something other than our cars. See the difference in depth of the tightening stop ring on the curved one. I think ZX changed wheel size with their aluminum ones in '79.

Edited December 4, 2021 by siteunseen

[CanTechZ]

Here is the one from my 1970,

[CanTechZ]

I found mine in the garage, here is a better pic with the rubber removed,

[Pat Carr]

Top one looks like the one from my 10/72 240Z

[CanTechZ]

It looks like it was changed when the 5" wide wheel was introduced in '72. In 70/71 it was 4.5" wide.

[siteunseen]

My #69,??? VIN is the round one. '77 is the square holder.

[CanTechZ]

18 minutes ago, siteunseen said:

My #69,??? VIN is the round one. '77 is the square holder.

Just checked the parts book, squarish one started Aug '73, it seems my theory above is incorrect.

Edited December 5, 2021 by CanTechZ