I II I BRAKES REAR AXLE AND DRIVE I II 5 387 HOUSING BOLT CONNECTOR VENTlLATOR IRear Axle Con t I 72 Ser 10 4 WD Blazer K 4 6272169 1 y I w spacers 72 Ser I0 Blazer 0 exc leaf A L spring 4 WD 6272170 1 w spacers I I I Ir I W I I ca 10 I I I I I71 G 10 w 3 36y3 70 ratio 3981968 1 w spacer 10 bolt cover 8 I25 ring gear 71 G 10 w 3 07C 3 73 Iratio I 3981969 1 w spacer 12 bolt cover 8 875 ring gear 72 G 10 A 6272171 1 w spacer 12 bolt cover I I Ser 20 I y I 5 A 63 72 Ser 20 Conv exc leaf spring I I I I I I Dana Axle 6264587 I1 I 10 bolt cover Q I 67 70 Ser 20 4 WD I 3964589 1 I I I 68 70 Ser 20 w 127 W B 396 exc I leaf spring D D 3955300 1 I w tube diff carrier Dana 26477X 68 70 Ser 20 D D I i x 69 70 Ser 20 127 W B vv leaf I I I I spring exc 4 WD D D 3965149 1 w tube diff carrier Dana 26549X 68 72 Ser 20 w leaf type spring exc I I I I I 4 WD Dana Axle 6264588 1 I I I 71 Ser 20 Conv 127 W B I I w Dana Axle I 3979687 1 A Dan 27315X 71 72 Ser 20 4 WD 6264589 VI I I 72 Ser 20 Conv 127 W B I I I I 3 54 4 10 4 56 ratio w leaf I spring 3995863 1 Dana 27670X I 72 Ser 20 Conv exc leaf I I I springs 3995861 1 Dana I I I G 20 5 I 5 I I 71 72 G 20 6272171 1 w spacer 12 bolt cover I I I I I Ser 30 NOTE 4 When using on C 30 models it will be necessary to remove left hand tee connector bracket On P30 remove right hand tee conn bracket I NOTE 5 Axle housing will include shock absorber brackets Disregard brackets on models not requiring shock absorber bracket I 63 70 Ser 30 exc dual whl shock I I J absorb 1 1 000 lb axle 3909797 I I I I 63 70 Ser 30 w Dual Rear Wheels L I exc 1 1 000 lb axle shock C I I absorber 3909798 I Note 5 4 68 72 Ser 30 w 11 000Ilb axle 3988439 2 1 I I 67 72 Ser 30 exc 1 1 000 lb axle I I I dual wheels I 6264588 1 I I I I 67 72 er 30 vv Dual Wheels exc I A I I 1 1 000 lb axle 377368 1 I I I G 30 I I I I I 71 72 G 30 1 6270961 I 1 I 38 56 Ton I I I 1489303 A R I BOLT hsg to carrier 24 x 1 u I 40 42 Comm i I 46 56 Ton I I 3 652348 4 BOLT hsg to carrier 24 x 1 I I 56 59 All 427565 A R BOLT hsg to carrier I 13 x 1 V 300M steel 8 900 I 57 59 1 TonI exc P Trac I I I I 60 82 Ser 10 I I 63 Ser 10 4 WD lst Ser I 3735728 4 BOLT hsg to carrier long 24 x I I I I 1 5 Not required in this group See I I I I I group 9 008 I 6257777 BOLT 14 x 5 z No 2 body 68 70 Ser 10 396 I I 68 72 Ser 20 w Dana axle 650072 1 0 I BOLT gear carrier cover 72 Ser 20 Conv w Dana Axle 3995865 1 BOLT diff carrier cover Dana 36286 66 69 Ser 10 G 10 20 6 A 70 Ser 10 G 10 20 exc D D 70 I Blazer I V I I 71 72 G 1O thru 30 I 3889578 1 I CONNECTOR rear axle ventilator 38 64 All I I 66 72 Sar 10 thru 30 G I0 20 Blazer 3820840 1 VENTILATOR I 65 Ser 10 G 10 3766380 1 VENTILATOR Not required in this group See W I group 6 008 2140049 VENTILATOR GM PARTS DIVISION GENERAL MOTORS CORPORATION CHEVROLET 72TL i I 5 387 5 387 I I 5 18 I REV 5 79