69 4-Speed shift linkage, bracket, etc. - original component finishes?

[Hans L]

Finished shifter - installed:

[Hans L]

More - here's another picture of the shifter levers (Items 6 and 7 from the list) - you can clearly see the yellow hue for the forward shifter levers and for the Item 7 - Reverse Shifter Lever - it was dark phosphate.  No hint of silver zinc anywhere.   These are original to my Z, 04B, LA build.

[Hans L]

Regarding these:

9. Adapter Plate bolts as best I can tell were Mag Phosphate.   After clean-up they were quite dark and did not show any hint of Silver Cad.

[Hans L]

And finally, regarding - 11. Shifter Body to Adaptor Plate Bolts and Washers (2 x 2) - Manganese Phosphate ?

I think the main center one is Silver Cad as best I can tell when I cleaned it up and the lower bolt is a dark Phosphate.

Here's a pic before plating:

[Hans L]

Here's the shifter pieces I had plated.   Can't absolutely verify they are 100% factory correct, but I had everything re-plated on the best evidence I had when I inspected each bolt and shifter piece.

[Edgemontvillage]

Looks good, thanks for posting Hans.