1966 Pontiac (All models)

Information supplied by George Pearson
1966 Fullsize Pontiacs Speedometer Gear Usage Chart (Turbo 400)
  Driven Gear or Gear & Sleeve Tire Size Speedometer Adapter    
Axle Ratio Part # Teeth Color 8.25 x 14 8.55 x 14 8.15 x 15 8.45 x 15 9.00 X 15 Model Ratio Part # Color Fitting & seal Assy Transmission code
3.55 1362195 41 YELLOW X         777-S 0.7692 535615 YELLOW 1362293 PB-PD-PG
3.55 1362048 40 BLACK   X   X   777-S 0.7692 535615 YELLOW 1362293 PB-PD-PG
3.55 1359273 39 BROWN     X     777-S 0.7692 535615 YELLOW 1362294 PB-PD-PG
3.55 1359271 37 RED X         777-S 0.7692 535615 YELLOW 1362294 PA-PC
3.55 1359270 36 WHITE   X   X   777-S 0.7692 535615 YELLOW 1362294 PA-PC
3.55 9780628 35 PINK     X     777-S 0.7692 535615 YELLOW 1362294 PA-PC
3.55 9780470 44 DK GREY         X         1362293 PH
3.08 9775187 45 LT BLUE X X   X           1362293 PB-PD-PG
3.08 9780470 44 DK GREY     X             1362293 PB-PD-PG
3.08 1362049 42 GREEN X                 1362293 PA-PC
3.08 1362048 40 BLACK   X X             1362293 PA-PC-PH
3.08 1362195 41 YELLOW       X           1362293 PA-PC-PH
3.73 1362196 43 PURPLE X         777-S 0.7692 535615 YELLOW 1362293 PB-PD-PG
3.73 1362049 42 GREEN   X   X   777-S 0.7692 535615 YELLOW 1362293 PB-PD-PG
3.73 1362195 41 YELLOW     X     777-S 0.7692 535615 YELLOW 1362293 PB-PD-PG
3.73 1359273 39 BROWN X         777-S 0.7692 535615 YELLOW 1362294 PA-PC
3.73 1359272 38 BLUE   X   X   777-S 0.7692 535615 YELLOW 1362294 PA-PC
3.73 1359271 37 RED     X     777-S 0.7692 535615 YELLOW 1362294 PA-PC
3.42 1359273 39 BROWN X     X   777-S 0.7692 535615 YELLOW 1362294 PB-PD-PG
3.42 1359272 38 BLUE   X X     777-S 0.7692 535615 YELLOW 1362294 PB-PD-PG
3.42 9775187 45 LT BLUE X X   X           1362293 PA-PC
3.42 9780470 44 DK GREY     X             1362293 PA-PC
2.93 9780470 44 DK GREY X                 1362293 PB-PD-PG
2.93 1362196 43 PURPLE   X   X           1362293 PB-PD-PG
2.93 1362049 42 GREEN     X             1362293 PB-PD-PG
2.93 1362048 40 BLACK X                 1362293 PA-PC-PH
2.93 1359272 38 BLUE   X X             1362294 PA-PC-PH
2.93 1359273 39 BROWN       X           1362294 PA-PC
2.93 1359271 37 RED         X         1362294 PH
2.73 1362195 41 YELLOW X                 1362293 PB-PD
2.73 1362048 40 BLACK   X   X           1362293 PB-PD
2.73 1359273 39 BROWN     X             1362294 PB-PD
2.73 1359271 37 RED X                 1362294 PA
2.73 1359270 36 WHITE   X   X           1362294 PA
2.73 9780628 35 PINK     X             1362294 PA
2.56 1359272 38 BLUE X X**   X**   777-S 0.7692 535615 YELLOW 1362294 PB-PC-PD-PG
2.56 1359271 37 RED   X X**     777-S 0.7692 535615 YELLOW 1362294 PB-PC-PD-PG
2.56 9780628 35 PINK X                 1362294 PC
2.41 1359270 36 WHITE X     X           1362294 PB-PD
2.41 9780628 35 PINK   X X             1362294 PB-PD
3.23 1359271 37 RED X     X   777-S 0.7692 535615 YELLOW 1362294 PB-PD-PG
3.23 1359270 36 WHITE   X X     777-S 0.7692 535615 YELLOW 1362294 PB-PD-PG
3.23 9780470 44 DK GREY X                 1362293 PA-PC
3.23 1362049 42 GREEN   X X             1362293 PA-PC-PH
3.23 1362196 43 PURPLE       X           1362293 PA-PC-PH
                             
NOTES: X**=ADAPTER REQUIRED ON "PC" CODED TRANSMISSIONS                            
Information supplied by George Pearson, taken from a Pontiac Parts Book