4 SPEED TRANSMISSION 1971 SPEEDOMETER GEAR CHART DRIVE GEAR PART NUMBER COLOR NUMBER OF TEETH mm a r j r DRIVEN GEARS 3987919 I Natural 3987920 Blue 3987921 Rad NOTE To order speedometer gears end parts trensmlssiun rear axle ratio and tire size must be known NOVA 4 337 4 343 REAR GEAR GEAR AXLE REAR TIRE SIZE SPEEDO SPEEDO RATIO A A DRIVEN DRIVE E78 l4 E70 14 sssvezi ezanga 4 CHEVELLE CAMARO 4 337 4 329 REAR GEAR GEAR AXLE REAR TIRE SIZE SPEEDO SPEEDO ADAPTER RATIO DRIVEN DRIVE ASSY 3 083 E78 14 3987920 6261794 3 083 F70 14 F78 14 3987919 6261794 3 308 E78 I4 F78 14 F60 15 3987921 6261794 3 308 G78 I4 G70 15 G78 15 3987920 6261794 3 364 E78 14 F78 14 G78 14 3987921 5261794 3 4l7 F70 l4 3987921 6261794 3 727 F60 15 3987919 6261794 3950352 4 100 F78 14 F60 15 3987921 261794 3950352 1972 SPEEDOMETER GEAR CHART DRIVE GEARS PART uumeen nuivleen or TEETH 6261794 Natural 8 3978758 Steel 8 DRIVEN GEARS 3987918 Brown l8 3987919 Neturel 19 3987920 Blue 20 3987921 Red 2l 3987922 Solid Silver 22 NOTE Tc order speedometer geers parts transmission type rear ex e rem tire she must be known GM PARTS DIVISION GENERAL MOTORS CORPORATION CHEVROLET ll 4 337 4 337 us REV 4 77