C2 1963 shift knob

[Jerry S.]

My four speed came with 2 knobs. One is a complete sphere and the other has a cutout, in the thread area, apparently for a nut. Which is correct for the 63 four speed? If the cutout is for a nut and washer, what is used?

[Joe L.]

Re: C2 1963 shift knob

Jerry----

The PROUCTION shifter knob used for your car was GM #3788202. This knob was made of black bakelite plastic. As far as I know, it was completely round with a tapped hole for attachment to the shifter lever.

The GM #3788202 was discontinued in February, 1967 and replaced by GM #3895202. That piece was discontinued in December, 1967 and replaced by GM #3921146. I don't know how these parts differed from the original, but it may have been in the way you describe for one of your knobs and that may be what you have. Otherwise, it may be an aftermarket piece.

[Jerry S.]

Re: C2 1963 shift knob

I have received several emails one saying the ball is solid back no shift pattern and the other saying with shift pattern and a chrome nut. Which is correct?

[Joe L.]

Re: C2 1963 shift knob

Jerry-----

I am not aware of any original 1963 shifter knob which had the shift pattern on it. In fact, later Corvettes didn't have it, either. The shift pattern was displayed on the console, NOT the knob. Chevrolet never put the pattern in 2 places.

The later SERVICE knobs that I mentioned MAY have had the patterns on the knob; they could have been a "one-size-fits-all" type of thing to SERVICE many applications.

By the way, you didn't mention anything about a shift pattern being present on either of the knobs in your original post.

[Jerry S.]

Re: C2 1963 shift knob

I have two knobs, one with pattern and one without. We will screw the plain round black ball in place now. Thanks for your help.
Jerry

[Duke W.]

Re: C2 1963 shift knob

As a SWC original owner, I can assure you that the OE shift knob is as Joe described - spherical black bakelite with no pattern and a threaded insert to screw onto the shift lever.

The shift pattern is on a separate annodized aluminum plate that attaches to the center console annodized aluminum trim plate.

Duke

[Jerry S.]

Re: C2 1963 shift knob

My original knob was 1-1/2" dia and the freeby judging informed me my black ball was incorrect. I have another ball that is 1-3/4" diameter and feels good. We want our coupe to look as good as yours, Duke.

[Duke W.]

Re: C2 1963 shift knob

My my caliper reads 1.510 - 1.511" across the mold line.

Duke

[Jerry S.]

Re: C2 1963 shift knob resolution

Thanks again, I will use my original knob!
Jerry

[Joe Pennington]

Re: C2 1963 shift knob resolution

Jerry, My early Oct.'63 built 1964 has the original shifter knob. It is spherical black plastic with no shift pattern. It was a 1963 part carried over into the early 64's along with a few other '63 items.

[Joe L.]

Re: C2 1963 shift knob resolution

Joe------

If the 1963 knob was carried over to early 1964, then I would expect that the 1963 shifter linkage must have been used as well on those cars. I don't think that the thread size is the same for the 1963 and 1964 shifter lever (and knob).

[Joe Pennington]

Re: C2 1963 shift knob resolution

Joe, My 64 is a PG, so it has the small diameter shift lever. Sorry that I didn't state that in my reply. thanks