3 SPEED TRANSMISSION 71 Pass Sta Wag 3993044 1 71 Chevelle w H D 3911941 1 33 80 4 318 GASKET SEAL ASSY Transmission Rear Main Bearing 71 All exc H D 3878752 1 10 extension 71 Chevelle w H D 3911943 1 25 extension 71 All 1388231 1 2 40 SEAL ASSY extension oil 4 329 ADAPTER Speedometer NOTE For model application see speedometer gear chart 4 330 KEY Speedometer Adapter NOTE For model application see speedometer gear chart 4 337 GEAR Transmission Speedometer Driven NOTE For application see speedometer gear chart 1971 SPEEDOMETER GEAR CHART DRIVE GEARS PART NUMBER COLOR NUMBER OF TEETH 3924098 Natural 8 DRIVEN GEARS 3987918 Brown 18 3987919 Natural 19 3987920 Blue 20 3987921 Red 21 NOTE To order speedometer gears and parts transmission type rear axle ratio and tire size must be known REAR AXLE REAR TIRE SIZE 4 337 GEAR 4 343 GEAR 4 329 RATIO SPEEDO DRIVEN SPEEDO DRIVE ADAPTER ASSY 2 733 G78 15 3987921 3920350 3950350 2 733 L78 15 3987920 3920350 3950350 3 083 E70 14 E78 14 3987920 3920350 3 083 F70 14 F78 14 F78 15 3987919 3920350 3 083 G70 15 G78 15 H78 is 15 3987918 3920350 3 308 E78 14 F78 14 3987921 3920350 3 308 G78 14 3987920 3920350 3 364 E78 14 G78 14 3987921 3920350 4 338 FITTING RETAINER SEAL Speedometer Driven Gear 71 All 3869814 1 2 00 w seal 71 Pass 3708148 1 10 RETAINER gear fitting e I D 71 All 3708148 1 10 SEAL speedo pinion 71 All w H D 3869912 1 2 00 SEAL ASSY w fitting 4 342 SHAFT ASSY Speedometer NOTE See Dealer Price Schedule P A 26 for Applicable Prices NOTE For Cables less casing refer to old book for universal casings PASSENGER With Casing O L exc Taxi 6478514 53 NOVA w floor control 6478171 44 exc floor control 6478176 64 CHEVELLE exc H D 6478175 60 w H D 6478178 72 CAMA RO 6478170 Upper 40 6478225 Lower 18 4 345 CLIP Speedometer Drive Gear 71 All 6281353 1 10 retainer