59 66 All 283 327 1st design 67 69 Ser 40 8 cyl 3764552 1 1 55 dist to pump inter 2 372 Note 1 59 61 All 348 62 64 All 348 409 1st design 3764553 1 1 55 dist to pump inter 6 V O L 2 372 Note 1 64 68 All 327 2nd design 3857657 1 1 70 dist to pump inter 2 372 I 64 All 348 409 2nd design 3857658 1 1 70 dist to pump inter 6 O L 2 372 65 66 All D351 D DH478 w gear oil pump drive 65 66 Ser 60 TDM w Tach D DH478 67 69 All DH478 2449504 1 18 15 w gear tach flex 65 All D351 D DH478 66 Ser 50 D351 exc Tilt 66 Ser 60 D DH478 exc TDM 67 69 All DH478 2463853 1 1 05 oil pump drive 66 67 All 366 427 3860469 1 1 60 dist to pump inter 2 372 68 70 All 366 427 3928934 1 1 80 dist to pump inter 2 372 69 70 Ser 50 350 3942598 1 3 10 dist to pump inter 2 372 70 Ser 40 350 3951565 1 1 80 dist to pump inter 2 372 65 68 All D351 D DH478 2454116 1 42 BUSHING drive gear shaft 65 67 All D351 D DH478 68 69 All DH478 2455975 1 90 CLAMP drive gear housing 62 64 Ser 60 Diesel 5116213 1 4 81 GEAR drive 62 64 Ser 80 Diesel 5116458 1 6 17 GEAR drive 65 69 All 3 53 4 53 5144375 1 7 10 GEAR drive 65 66 Ser 80 6V 53 5135079 1 6 56 GEAR drive 55 59 All 8 cyl exc 322 142485 1 02 PIN groove tapered V dia x Iong 8 940 66 70 All 350 366 427 3877674 1 05 PIN dist to oil pump inter shaft sleeve retainer 55 57 All 265 283 555746 1 05 RETAINER drive sleeve yuan thick 60 70 Ser 40 thru 80 8 cyl exc 366 427 3764554 1 10 RETAINER dist to pump inter shaft Note 1 62 69 Ser 50 60 4 53 5195957 1 33 26 ROTOR ASSY 62 66 Ser 80 6V 53 5195687 1 39 46 ROTOR ASSY 65 70 All 3 53 5195714 1 27 56 ROTOR ASSY 65 69 All D351 D DH478 2480487 1 20 25 ROTOR ASSY w shaft 58 61 All exc 322 66 70 All 350 366 427 3877672 1 75 SLEEVE intermediate shaft NOTE 1 For use with pump having retainer ring groove 1 649 WASHER Distributor and Oil Pump Gear Thrust 56 59 All 322 1945776 1 25 br0nze Vz l D x 1 O D x Vu thick 2 379 1 652 PUMP ASSEMBLY BOLT BRACKET UNlT SCREW Oil 40 53 All 839157 1 14 05 body cast 839159 54 55 All 1st Ser 3702363 1 16 65 body cast 3702365 cover cast 3701562 55 62 All 6 cyl 3815635 1 17 30 59 70 All 8 cyl exc 322 366 427 3821979 1 16 55 62 69 All 4 53 5121042 1 60 39 62 66 Ser 80 6V 53 5116070 1 75 92 63 70 All 6 cyl 3832449 1 17 30 cast 3832182 65 69 All D351 D DH478 669106 1 65 67 Ser 50 3 53 51 16110 1 46 02 66 Ser 60 80 366 3904826 1 15 90 67 70 All 366 427 3964260 1 18 55 w screen 55 58 All 8 cyl exc 322 3755420 1 18 80 PUMP UNIT cast 3704180 on cover Note 1 NOTE 1 Includes pump assy screen assy intermediate shaft and retainer When installing on models with 348 engine discard intermediate shaft and use old shaft 54 58 All 6 cyl 60 63 All 6 cyl 3660343 2 15 BOLT bracket mounting 16 x 1Vz 55 66 All 8 cyl exc 322 3754998 1 15 BOLT pump retaining set hex lock 14 x 27 IQH 66 70 All 366 427 3860382 1 15 BOLT pump and screen asm Via 14 x 2 4 67 70 All 283 307 327 350 3892678 1 15 BOLT pump end screen 14 x 2 54 62 All 6 cyl 3755560 1 2 00 BRACKET UNIT 38 62 All 6 cyl 838172 1 15 SCREW V 14 x 1 0veralI hex head 1 653 BODY Oil Pump 65 69 All D351 D DH478 2449572 1 11 55 1 655 GASKET Oil Pump Body 56 59 All 322 1343230 1 10 2 Iong V3z dia largest hole 1971 CHEVROLET MOTOR DIVISION GENERAL MOTORS CORPORATlON P A 31S 1 639 1 655 1 70 REV 6 71