57 3 spd shifter rods

[Greg K.]

Does any one know what finish/coating was used on the shifter rods in 57? I've heard black phosphate and seen bare metal. Anyone shed some light on the subject as to what the judges will call right?

[Gary C.]

Re: 57 3 spd shifter rods

Greg,

Blueprints do not spec any finish, which usually means steel finish.

Gary
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3723128 rod-Transmission Control First and Reverse 2-28-55.jpg 3723129 Rod-Transmission Control Second and Third 2-28-55.jpg

[Greg K.]

Re: 57 3 spd shifter rods

Thanks Gary. That's very interesting that they specify heat treat and hardness but not a finish. But I tend to agree, if the blueprint doesn't specify, then they would leave as is. Unless there's a next higher assembly drawing that calls out the finish along with the clevis'. That would be unusual though.

Greg

[Gary C.]

Re: 57 3 spd shifter rods

Greg,

Finish, if any for a piece part is always called out in the piece part drawing from what I've seen with GM drawings.

Finish for an assembly is called out in the assembly drawing such as the C1 front suspension assembly paint.

Gary
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[Greg K.]

Re: 57 3 spd shifter rods

Gary,
Thanks for all the info and help. Especially the drawings. Not sure where you scrounged something like those up, but is a big help. Kept me from going out and having the rods black cad plated.

From your experience, what have you seen done to the linkage to keep them from rusting? Just rubbing an oil on them? Anything that you have seen that works better than others?

Greg

[Gary C.]

Re: 57 3 spd shifter rods

Greg,

Suggest you start a separate thread about what to use to keep the steel shift rods from rusting.

I'm sure new and better stuff has come along to use.

Gary
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