POW R FLOW TRANSMISSION 4 337 GEAR Transmission Speedometer Driven Con t 71 3924098 Natural 8 71 3905494 Solid Red 9 72 6261794 Natural 8 72 6261785 Purple 10 DRIVEN GEARS 71 2 3987918 Brown 18 71 2 3987919 Natural 19 71 2 3987920 Blue 2O 71 2 3987921 Red 21 71 2 3987922 Silver 22 POW R FLO Rear 4 337 4 343 Axle Rear Tire Size Gear Speedo Gear Speedo Year Ratio Driven Driven 71 3 077 E78 14 F78 14 3987919 3924098 71 3 083 E78 14 3987920 3924098 71 3 083 F78 14 3987919 3924098 71 3 364 E78 14 F78 14 3987921 3924098 72 3 364 E78 14 F78 14 F60 15 3987921 6261794 4 338 RETAINER SEAL Speedometer Driven Gear 72 Sprint 3708148 1 speedo driven gear fitting 72 Sprint 6264903 1 SEAL speedo driven gear fitting 4 342 SHAFT ASSY Speedometer 71 Sprint w o Cruise Control 6480373 1 incl casing 60 long 72 Sprint w o Cruise Control 6478175 1 incl casing 53 long 71 Sprint w Cruise Control 6480373 1 lower incl casing GO long 72 Sprint w Cruise Control 25032241 1 lower incl casing 60 long 4 343 GEAR Speedometer Drive NOTE For usage see speedometer gear chart 4 345 CLIP Speedometer Drive Gear 71 Sprint 6261781 1 GM PARTS DIVISION GENERAL MOTORS CORPORATION SPRINT 57 4 337 4 345 4 38 REV 4 81