TURBO HYDRAMATIC TRANSMISSION 1968 CORVETTE TURBO HYDRAMATIC TRANSMISSION T H 400 SPEEDOMETER GEAR CHART NOTE T0 order Speedometar Gears or Parts Transmission Type Hear Axle Hatio and Tlre Size must be known 4 343 4 337 REAR GEAR GEAR 4 329 AXLE SPEEDO SPEEDO ADAPTER RATIO TIRE SIZE DRIVE DRIVEN SPEEDO 2 73 8 45 x 15 8623813 1359270 2 73 8 15 x 15 F70x15 G70x 15 8623313 1359271 3 07 8 15 15 8 46x15 G70x15 8623313 1362195 3 08 8 15x15 8 45x15 G70x 15 8623313 1362195 3 08 F70 x 15 8623313 1362049 3 31 8 45 x 15 8623313 1362196 3 31 8 15x15 G70x15 8623313 9775187 3 38 8 45 x 15 8623313 1362196 3 36 8 15x I5 G70x15 8623313 9775187 1969 CORVETTE SPEEDQIVIETER GEAR CHART NOTE T0 order Speadameter Gears or Parts Transmission Typo Hair Axle Rario and T re Size mus be known TURBO HYDRAMATIC TRANSMISSION T H 400 exc H D Sp H Per 427 V 7 4 338 4 843 4 337 SLEEVE REAR GEAR GEAR SPEEDO AXLE TIRE SIZE SPEEDO SPEEDO DRIVEN RATIO l DRIVE DRIVEN GEAR 2 73 8 55 x 15 G78 x 15 8623313 1359270 2 73 G70 x 15 8 25 x 15 8623313 1359270 2 73 F70 x 15 8623313 1359271 3 07 8 55 x 15 8623313 1362048 3 07 G7O x 15 8 25 x 15 G78x15 8823313 1362195 3 08 8 55 x 15 8823313 1362048 8 08 G70 x 15 8 25 x 15 G78x 15 8623313 1382195 8 08 F70x 15 8624738 1362049 3 80 8 55 x 15 8823313 1362196 3 30 G70 x 15 8 25 x 15 1378 x 15 8623313 9790470 GM PARTS DIVISION GENERAL MOTORS CORPORATION CHEVEOLET 14 4 331 4 337 4 se REV 6 19