PMD Walnut Shifter Knobs
Q: PMD Walnut Shifter Knobs
What is the correct Pontiac Motor Division walnut shifter knob style?
A: Use the following link for a photo of an Installation Drawing for the Walnut Shifter Knobs for 3 and 4 spd M/T Pontiac’s:
These are the “PMD” style knobs:
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3spd – “PONTIAC MOTOR DIVISION” w/Red Crest (pt. # 9794301)
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4spd – “PONTIAC MOTOR DIVISION” w/shft.ptrn. (pt. # 9794300)
Note the application (“1968 w/M/T Floor Shift”) Also note the date on the drawing (1-23-67)
There have been reports of the earlier (’66-’67) “GTO CREST” Knob being used on the ’67/’68 Firebirds. This may have happened as the result of Dealer Stock but I doubt that any 1968 Firebirds came from the factory with a “GTO CREST” 4spd Knob.
Also note, the 1968 Accsry. Book notes that the Custom GearShift Knob (code 524) was used in (2) different styles (3 and 4 spd). 3spd used the “Pontiac Vee Crest” 4spd used the “Shift Position” (pattern).
In 1967 this knob was described as having (2) applications: 3 and 4 spd with “Ebony appearing Pontiac Crest and shift pattern”
In ’66 this knob was described as being available for only the GTO with the 4spd trans.
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Assuming manual 4-speed ball shifter knob.
Were you able to decipher the build sheets? It is very unlikely ordered from the factory. The broadcast sheets may/may not shed some light on it. Pictures?
The 1967 – 1968 Shifter Knob Ball, White 4 Speed, has the smaller 5/16 Inch Thread size (attached picture). White was used for light colored seats. Black used for dark colored seats.
I believe the 1968 GTO used a 3/8 thread size.
Additional info:
https://firstgenfirebird.org/forums/ubbthreads.php?ubb=showflat&Number=321829&Searchpage=2&Main=39188&Words=Shifter+knob&Search=true#Post321829
Attachment: 
I bought a 68 Firebird in 2002. The car was never restored and it’s a true numbers matching car with 2 build sheets found and registration cards from the original owner.
The car had the GTO shifter knob on top of the Hurst shifter. I thought it was a mistake but read somewhere the knobs may have been used in Firebirds.
Is there any information to back this up?
The 1967 – 1968 Shifter Knob Ball, Black 4 Speed, has the smaller 5/16 Inch Thread size (attached picture). White was used for light colored seats. Black used for dark colored seats.
Attachment: