63 Ser 10 4 WD 1st Ser 2402528 1 26 60 front axle Dana 31441 54 62 V Ton exc O D P Trac 63 Ser 10 4 WD 1st Ser 3867832 1 21 10 w side gear thrust washer case 3697701 63 70 Ser 10 3 07 ratio exc A D D 69 70 G 20 w 3 07 ratio 69 Ser 10 4 WD Blazer w 104 W B 350 70 Blazer 3865968 1 21 10 63 Ser 10 w P Trac 3 73 ratio 65 70 Ser 10 w P Trac 3 73 4 11 ratio exc 4 WD 65 70 G 10 w P Trac 3 73 4 11 ratio 67 69 G 20 w P Trac 3 73 4 11 ratio 70 Blazer 3938932 1 70 50 Eaton EED 22714 63 69 Ser 10 G 10 exc P Trac 3 07 ratio 67 69 G 20 exc P Trac 70 Ser 10 G 10 20 w 3 73 4 11 ratio 3863182 1 21 10 rear axle w washers 64 68 Ser 10 4 WD w power lock 2457055 1 76 50 Dana 23435X 64 68 Ser 20 4 WD w power lock 2457056 1 76 50 Dana 2 3436X NOTE 3 When using 2475248 in place of 3849914 pinion shaft 3869308 must also be used 64 70 Ser 20 4 WD 65 67 Ser 20 w leaf type springs 70 Ser 10 4 WD Blazer w 3 07 3 73 ratio 2457067 1 24 40 front axle Dana 32684 64 Ser 10 4 WD 3 73 ratio 65 69 Ser 10 4 WD 65 67 Ser 10 w leaf type springs 69 Blazer 70 Ser 10 4 WD Blazer w 3 07 3 73 ratio 2457066 1 26 55 front axle Dana 32681 64 65 G 10 w P Trac 3 36 ratio 3905826 1 104 65 Dana iZ5548X 64 70 G 10 exc P Trac 3958109 1 22 45 w 10 bolt cover 65 70 G 10 w P Trac 3 36 ratio 3869342 1 44 10 Eaton ED 30116 65 70 Ser 20 leaf type springs 4 56 ratio exc P Trac 2358880 1 37 90 Dana 30258 65 69 Ser 20 leaf type springs 4 10 ratio exc P Trac 68 70 Ser 10 396 3 54 ratio 68 70 Ser 20 w 396 3 54 ratio 2376270 1 35 40 Dana 30357 65 68 G 10 w P Trac 3 36 ratio 3888074 1 58 15 Dana 33289 65 70 Ser 20 4 56 ratio w power lock 2392352 1 137 10 Dana 21493X 65 70 Ser 20 exc 4 56 ratio 68 70 Ser 10 3 54 ratio w power Iok 2410580 1 129 45 Dana 21495X 69 Ser 10 w 3 07 ratio exc D D 4 WD 70 Ser 10 Conv P Trac w 3 07 ratio 70 Conv Blazer P Trac w 3 07 ratio 3974346 1 Eaton ED 32212 60 62 Ser 10 w P Trac 3794013 1 58 15 CASE UNIT w clutch plate guides 57 59 V2 Ton w P Trac 454908 8 25 BOLT case assy 16 x 2 Fl H thread 8 900 A 63 68 4 WD w power lock 2442806 8 18 BOLT diff case 24 x V4 L H thread 65 67 Ser 20 w P Trac leaf type springs 68 70 Ser 20 w power lock 4 10 4 56 ratio 1971 CHEVROLET MOTOR DIVISION GENERAL MOTORS CORPORATION P A 31 REV 6 71 5 47 5 510 5 510