40 4 2 COMM 46 53 TON 55 57 TON O D cast 3652336 daub of orange paint 3652336 1 13 05 40 42 UTILITY exc hvy duty 2 SPD 42 53 UTILITY 54 57 1 TON cast 3661872 73 605922 1 25 85 46 57 1 TON cast 3664592 93 609803 1 17 05 46 53 2 SPD Vac Shift stamped 3835 C 263 A20 3835 D 264 6100001 1 42 35 50 52 PASS w P G 53 PASS exc SDL 54 PASS 53 55 CORV cast 593009 identified by blue paint 3691463 1 11 60 54 57 I ON exc O D cast 3697701 3697701 1 13 05 54 56 2 TON procl cast 3702226 3707515 1 26 95 54 55 2 SPD Vac Shift lst Ser cast 3703727 3 707538 1 42 35 55 56 PASS exc O D 56 CORV cast 3707311 3 707311 1 11 60 55 56 PASS O D 56 CORV 3 SPD cast 3707312 3707312 1 11 60 55 56 2 TON hvy duty 2nd Ser 57 Ser 6 exc 2 SPD cast 3711453 3718102 1 28 05 55 57 2 SPD 2nd Ser planet support cast 3705811 outer 3717214 1 52 25 57 PASS exc O D 57 CORV exc 4 11 ratio cast 3737717 3737717 1 11 75 57 PASS O D cast 3731614 3731614 1 11 75 55 57 2 SPD 2nd Ser SUPT ASSY planet cast 3705805 inner 3717215 1 41 25 46 55 2 SPD Vac Shift lst Ser BOLT case assy 18 x 2 drld 3682519 8 5 479 46 55 2 SPD Vace Shift 1st Ser BOLT case assy 18 x 5 drld 3682520 8 5 531 NOTE Bolts holding case together to be discarded when installing TNOTE Ream holes after gear assembly See Truck Shop Manual Section 4 5 512 ANCHOR BUSHING DOWEL BOLT Differential Shifter Sleeve 55 57 2 SPD 2nd Ser forge 3705822 3705822 1 7 65 55 57 2 SPD 2nd Ser BUSHINGI anchor 1 O D x thk 3705829 1 70 55 57 2 SPD 2nd Ser DOWEL anchor 1 I D x O D 3705830 1 10 55 57 2 SPD 2nd Ser BOLT anchor 16 x 1 3705823 1 05 5 515 GEAR BEARING BOLT Differential Sun and Planet 55 57 2 SPD 2nd Ser SUN GEAR w retainer 1 I D 17T 3705813 1 19 70 55 57 2 SPD 2nd Ser PLANET GEAR 21 O D 15T 3705816 4 5 90 55 57 2 SPD 2nd Ser BEARING 33 I D Hy A 21018 Z 7450358 1 23 85 55 57 2 SPD 2nd Ser BOLT diff and planet sup t to cover attach 2 x 1 i 454319 8 8 900 5 517 SHAFT Differential Pinion 33 36 CC DC EC FC 37 57 PASS CORV 1 x 42 long 3714784 1 1 05 33 36 CA CB DA DB EA EB ED FA FB FD 37 42 COMM 46 57 TON 1 x 52 long 23714787 1 1 05 5 518 SCREW Pinion Shaft 33 42 PASS COMM 46 57 PASS CORV TON pinion shaft lock 18 472546 1 20 5 520 SPIDER Differential 33 56 UTILITY prod 57 Ser 4 exc 2 SPD forged 3656895 370429 1 6 35 39 46 2 SPD Mech Shift 6 O L 3651425 1 8 15 46 57 l TON forged 3663696 3663696 1 6 35 46 52 2 SPD Vac Shift lst design 11 g hub hole stmp d 3278 M 91 3682505 1 9 55 52 55 2 SPD Vac Shift 2nd design lst Ser 1 hub hole 22295617 1 9 55 55 57 2 SPD 2nd Ser 55 56 2 TON hvy duty 2nd Ser 57 Ser 6 forged 3702248 3702248 1 7 05 NOTE Can be used in place of 3682505 but requires proper short length R H axle shaft 489 5 510 5 520 Y A4 A1 gl