4 SPEED TRANSMISSION 68 Ser 30 D D Muncie 4 Spd w prop shaft brake 3866663 1 3 75 6 teeth 68 70 For application refer to chart in group 4 337 3924097 1 45 8 teeth 68 For application refer to chart in group 4 337 3924098 1 40 8 teeth 68 Ser 30 D D Muncie 4 Spd w prop shaft brake 68 For application refer to chart in 4 337 group 3866663 1 3 75 68 For application refer to chart in 4 337 group 3925675 1 20 80 69 Blazer 3964593 1 10 65 6 teeth 69 70 For application refer to chart in group 4 337 6261076 1 50 9 teeth green 69 70 For application refer to chart in group 4 337 6261077 1 50 8 teeth black 69 70 For application refer to chart in group 4 337 6261078 1 50 8 teeth orange 4 345 CLIP Speedometer Drive Gear 69 70 All Blazer 6260066 1 drive gear retainer 4 351 GEAR Transmission Main Drive Clutch 60 61 Ser 10 thru 30 w 4 Spd 3761928 1 24 90 1V shaft dia 62 67 Ser 10 thru 30 w Muncie 4 Spd exc 327 348 3787253 1 24 90 62 67 All w Muncie 4 Spd 327 348 3787254 1 27 90 67 70 All w New Process 4 Spd 2495290 1 31 50 NP 959957 68 70 Ser 10 thru 30 Blazer w Muncie 4 Spd 3901175 1 35 85 17 teeth 68 70 G 10 20 w Warner 4 Spd 3931525 1 50 50 36 teeth 48 55 Comm w 4 Spd 1st Ser 55 58 Ser 10 thru 30 w 4 Spd 2nd Ser 3760851 1 35 00 GEAR UNIT Note 1 NOTE 1 Consists of one each gear gasket retainer and seal assy cone and ring 4 352 gEARING ROLLER Transmission Main Shaft Front Pilot to Main Drive S8 68 70 Ser 10 thru 30 Blazer w Muncie 4 Spd 7451535 17 15 mainshaft pilot roller 48 67 All w Muncie 4 Spd 7450010A R 10 ROLLER front pilot bearing Vu dia x V4 67 70 All w New Process 4 Spd 457067 A R 15 ROLLER frt bearing 0 D x Vn 0 L 4 353 SPACER RETAINER WASHER R NG Transmission Main Shaft Front Pilot to Main Drive Gear 48 67 All w Muncie 4 Spd 591436 1 55 pilot bearing roller 1 I D x 1 4 0 D x z thick 68 70 G 10 20 w Warner 4 Spd 389677 1 25 Warner T85G 25 68 70 All w New Process 4 Spd 2462251 1 40 NP 96187 48 55 Comm w 4 Spd 1st Sen 55 59 Ser 3 w 4 Spd 2nd Ser 60 68 Ser 10 thru 30 w Muncie 4 Spd 591443 1 15 RETAINER pilot bearing roller ring type 1 4 free dia x Vie wide 67 70 All w New Process 4 Spd 2462242 1 30 RETAINER bearing roller washer 67 70 All w New Process 4 Spd 2462241 1 35 WASHER special 68 70 Ser 10 thru 30 Blazer w Muncie 4 Spd 3901166 2 15 RING clutch gear brg 4 384 1971 CHEVROLET MOTOR DIVISION GENERAL MOTORS CORPORATION P A 31 4 343 4 353 4 98 REV 6 71