4 SPEED TRANSMISSIIDN 4 408 BEARING Transmission Main Shaft Rear 38 47 Comm w 4 Spd exc LT 90330 7 1 7 12 ND 33OX1A 48 67 All w Muncie 4 Spd 907271 1 9 48 main shaft w snap ring ND 3220 G 63 67 All w Muncie 4 Spd 907528 1 9 96 w snap ring ND 41208 1 l D 68 70 G 10 20 w Warner 4 Spd 907372 1 8 46 main shaft less snap ring 68 70 Ser 10 thru 30 w Muncie 4 Spd 907270 2 14 74 w snap 4 422 4 412 RING Transmission Rear Bearing and Mainshaft 48 69 All w Muncie 4 Spd 67 70 All w New Process 4 1 Snap 31V5 X 32Vnn X Vu 48 62 All w 4 Spd 63 67 Ser 10 thru 30 w 4 Spd 68 70 G 10 20 w Warner 4 Spd 2830050 1 30 snap EM x 3 thk 68 70 G 10 20 w Warner 4 Spd 3707188 1 15 snap 086 088 thick 68 70 G 10 20 w Warner 4 Spd 3725439 1 90 snap 68 70 Ser 10 thru 30 w Muncie 4 Spd 3901189 1 55 main shaft rear bearing retainer 4 413 SPRING PIN Transmission Synchronizing 48 63 All w Muncie 4 Spd 591575 2 15 energizing 1 Vu length 65 67 All w Muncie 4 Spd 5919 I4 4 15 3 z 0 D energizing 64 67 Ser 10 thru 30 w Muncie 4 Spd 38415225 2 10 energizing 68 70 G 10 20 w Warner 4 Spd 38708 I0 2 25 2nd and 3rd Warner 4682 AJ 48 55 Comm w 4 Spd lst Ser 55 59 Ser 3 w 4 Spd 2nd Ser A 67 70 All w New Process 4 Spd 2462245 1 90 energizing 68 70 All Blazer w Muncie 4 Spd 3866646 2 20 1st and 2nd speed clutch key 68 70 All Blazer w Muncie 4 Spd 3866359 2 25 3rd and 4th speed clutch key 60 63 Ser 10 thru 30 w 4 Spd 591576 4 15 PIN spring Vu dia x Wu length 64 67 Ser 10 thru 30 w Muncie 4 Spd 3841526 1 10 PIN spring 4 415 GEAR Transmission 3rd Speed 48 61 All w Muncie 4 Spd 3840045 1 17 35 3rd w bushing 24T 1 l D x 3 O D 62 67 Ser 10 thru 30 w Muncie 4 Spd 3830560 1 16 05 3rd non sliding 64 69 All w New Process 4 Spd 2462250 1 16 50 3rd NIP 95708 67 Ser 20 30 w New Process 4 Spd 68 70 Ser 10 thru 30 w New Process 4 Spd 2495292 1 16 50 3rd speed 68 70 G 10 20 w Warner 4 Spd 3931524 1 45 30 3rd speed 20 teeth 68 70 AII Blazer w Muncie 4 Spd 3901 161 1 16 00 3rcl speed 26 teeth 4 416 RING WASHERI Transmission Main Shaft 67 70 All w New Process 4 Spd 3727142 1 1 00 2nd speed NP 91726 ZVI O D 68 70 All Blazer w Muncie 4 Spd 3932267 1 1 00 WASIHER 3rd speed gear thrust 4 417 GEAR Transmission 1st and Reverse Sliding 48 67 All w Muncie 4 Spd 3905429 1 29 75 lst and reverse Note 1 NOTE 1 On 1948 1959 models it will be necessary to use 3905428 mainshaft due to the difference in A splines In order to insure easier shifting the compression strip and friction ring can be removed 68 70 G 10 20 w Warner 4 Spd 3774912 1 36 00 reverse 39T 4 z O D 1971 CHEVROLET MOTOR DIVISION GENERAL MOTORS CORPORATl0N P A 31 REV 6 71 4 103 4 408 4 41 7