Strut rod adjuster finish

[Pete B.]

What is the correct finish on the adjuster? I have seen the long bolt and integral cam black and bright zinc/cad as well as the opposite cam black and zinc. The nut and lock washer seems to be a mixed bag also. Seems to like the reproducers just take their liberty. I want to get mine right.

TIA

Pete

[Joe L.]

Re: Strut rod adjuster finish

What is the correct finish on the adjuster? I have seen the long bolt and integral cam black and bright zinc/cad as well as the opposite cam black and zinc. The nut and lock washer seems to be a mixed bag also. Seems to like the reproducers just take their liberty. I want to get mine right.

TIA

Pete

Pete-----


The bolt is black phosphate. The attached cam is natural steel. The separate cam is zinc plated.

Incidentally, the above description is for 1963 to early 1977 models. After that time, the bolt and attached cam were zinc plated.

[Pete B.]

Re: Strut rod adjuster finish

Thanks joe, I have seen bowtie cars that looked like that and did not see it documented anywhere. Thanks

[Jeff C.]

Re: Strut rod adjuster finish

Thank you for the information - could you clarify a little more for me? The bolt that has the round cam welded to it - should this be black phos for a '67? And then are you saying the round cam that slides on to the end of the bolt should be zinc/cad?

Thank you very much - Jeff Cornwell

[Joe L.]

Re: Strut rod adjuster finish

Thank you for the information - could you clarify a little more for me? The bolt that has the round cam welded to it - should this be black phos for a '67? And then are you saying the round cam that slides on to the end of the bolt should be zinc/cad?

Thank you very much - Jeff Cornwell

Jeff-----


The bolt portion of the bolt/cam assembly is black phosphate-finished. The cam which is part of the bolt/cam assembly is natural steel. The separate cam (for the opposite side of the strut rod bracket) is zinc plated. This is the same for all 1963-E77.

[Alan S.]

Re: Strut rod adjuster finish

Hi Joe,
How is the cam that's part of the bolt/cam assembly attached to the bolt?
I can't tell by looking at mine. Thanks.
Regards,
Alan

[Rich P.]

Re: Strut rod adjuster finish

There are 2 different original cam bolts (for 63-72ish) 1 has the M stamped into the washer and they are pressed together and as Joe said the bolt is black and the washer is natural.

The second design cam bolt has an M embossed on the head of the bolt. THOSE BOLTS HAVE THE WASHER WELDED ON AN CAN NOT BE SEPERATED!!! They ar cad/zinc plated.

Rich

[Joe L.]

Re: Strut rod adjuster finish

There are 2 different original cam bolts (for 63-72ish) 1 has the M stamped into the washer and they are pressed together and as Joe said the bolt is black and the washer is natural.

The second design cam bolt has an M embossed on the head of the bolt. THOSE BOLTS HAVE THE WASHER WELDED ON AN CAN NOT BE SEPERATED!!! They ar cad/zinc plated.

Rich

Rich-----

I think what you are referring to as "second design" is the L77-82 style bolt/cam assembly. This was GM #458979. It also became SERVICE for 63-E77 after April, 1978.

[Rich P.]

Re: Strut rod adjuster finish

Hey Joe,

I have seen both on original mid-years. I should have several sets in the shop I'll post some pictures tomorrow.

Rich

[Michael H.]

Re: Strut rod adjuster finish

Jeff-----


The bolt portion of the bolt/cam assembly is black phosphate-finished. The cam which is part of the bolt/cam assembly is natural steel. The separate cam (for the opposite side of the strut rod bracket) is zinc plated. This is the same for all 1963-E77.

I agree. I don't know anything about 68 and newer but the plating that you describe is what I'm familiar with for 63-67. Black bolt, unplated attached washer and zinc plated separate washer.

[Christopher K.]

Re: Strut rod adjuster finish

While we're talking about letters, I have one cam bolt with the "M" on the head and another with "GM" instead.
I assume the "GM" is a later service replacement?
Chris

[Timothy B.]

Re: Strut rod adjuster finish

Christopher,

The bolt with headmark (GM) is a service bolt. I purchased two of these in about 1981 with similar headmarks. I also have two with the M headmark and they are installed in my 63.

[Christopher K.]

Re: Strut rod adjuster finish

Thanks for the info Tim.
My originals from my '73 are a little pitted, but I don't believe they have any headmark at all.
Didn't mean to hijack your thread Pete!
Chris