1967 Pontiac Tempest & GTO Speedometer Gear Usage

Information supplied by George Pearson
1967 Tempest & GTO Speedometer Gear usage Chart
  Driven Gear Or Sleeve Tire Size Speedometer Adapter  
Rear End Ratio Part # Teeth Color 7.75 X 14 F70 X 14     Model Ratio Part # Color Fitting & Seal Assy
3.36 3860341 18 BROWN X X              
4.33 3860329 20 YELLOW X X              
3.90 3860344 21 RED X X              
3.90 9780522 18 GREEN X X              
3.55 3860342 19 NATURAL X X              
3.08 3870351 17 PURPLE X X              
3.23 3870351 17 PURPLE X                
3.23 3860341 18 BROWN   X              
 
Information supplied by George Pearson, taken from a Pontiac Parts Book