BRAKE REAR AXLE AND DRIVE 5 526 GEAR Differential Pinion 71 Sprint w P Trac 3830670 2 w 12 bolt cover Eaton ED 40343 71 2 Sprint exc P Trac 3880140 2 w 12 bolt cover 71 2 Sprint exc P Trac 3958108 2 w 10 bolt cover 4 71 2 Sprint w P Trac 1st design 9778343 2 w 10 bolt cover Eaton ED 40335 72 Sprint w P Trac 2nd design 3995842 2 17 teeth on side gear W 72 Sprint w P Trac 3995843 2 w 12 bolt cover Eaton 40343 73 4 Sprint w P Trac 1397647 2 73 7 Sprint w P Trac 3995895 2 Eaton type type C G K 76 7 Sprint w P Trac 6270977 1 B O type 8 Z dia ring gear 5 527 GEAR UNIT WASHER Differential Side with Pinion NOTE Unit contains 2 Side Gears 2 Pinion Gears Thrust Washers and Pinion Shaft 73 7 Sprint exc P Trac 1397647 1 G C K B O type 8 z dia ring gear 76 Sprint w P Trac 490778 1 P M type 8 B dia ring gear 76 Sprint exc P Trac 10000058 1 P M type 8 B dia ring gear 77 Sprint w P Trac 547212 1 P M type 8 4 dia ring gear 77 Sprint exc P Trac 547225 1 P M type 8 dia ring gear 73 5 Sprint exc P Trac 393140 2 WASHER diff pinion thrust 5 528 GEAR Differential Side 71 2 Sprint exc P Trac 3846078 2 w 12 bolt cover 30 splines 16 teeth 71 2 Sprint exc P Trac 3863725 2 w 10 bolt cover 28 splines 16 teeth 71 Sprint w P Trac 2472352 2 w 12 bolt cover 23 18 teeth Eaton ED 40334 7 71 Sprint w P Trac 3869344 2 w 10 bolt cover interior spline 28 exterior spline 23 18 teeth Eaton ED 40334 5 72 Sprint w P Trac 3995839 2 w 12 bolt cover 72 Sprint w P Trac 3995840 2 w 10 bolt cover 73 7 Sprint w P Trac 231075 2 Olds type type C G K B O 8 Z dia ring gear 76 7 Sprint w P Trac 3995894 2 Eaton type G C K type 8 z dia ring gead 5 529 GEAR ASSY Ring and Pinion not sold separately NOTE Part numbers in parentheses are stamped on ring gear and pinion respectively 71 2 Sprint 2 73 ratio w 10 bolt W cover 3961425 1 41 15T 3910818 3910823 71 2 Sprint 3 31 ratio w 12 bolt cover 3961405 1 43 13T 3862689 3862693 71 2 Sprint Custom 8 cyl 4 10 ratio w 12 bolt cover 3961409 1 41 10T 3862514 3862526 71 2 Sprint 3 36 ratio w 10 bolt cover 3961412 1 37 11T 3880044 3790628 71 2 Sprint 3 08 ratio w 10 bolt cover 3961413 1 37 12T 3880042 3790629 71 2 Sprint 2 73 ratio w 12 bolt cover 3961435 1 41 15T 3869785 3869788 71 Sprint 2 56 ratio w 10 bolt cover 3961426 1 41 16T 3917184 3917185 73 5 Sprint 3 42 ratio w 10 bolt cover 1258710 1 73 7 Sprint w 2 73 ratio 1258708 1 G C K B O type 8 2 dia 73 7 Sprint w 3 08 ratio 1258709 1 G C K B O type 8 2 dia 76 7 Sprint w 2 56 ratio 1394766 1 B O type 8 Z dia 76 Sprint w 2 73 ratio 481496 1 P M type 87 S dia 76 Sprint w 3 08 ratio 481498 1 P M type 8 a dia 77 Sprint w 2 73 ratio 527337 1 P M type 83 4 dia repl 527959 77 Sprint w 3 08 ratio 10002811 1 P M type 8 4 dia repl 527961 5 531 BOLT Ring Gear 71 2 Sprint w round cover 2402525 A R 24 x 5 az used with lock washer 75 7 Sprint 1241564 10 hypoid drive gear type G C K B O 7 1s X 7 B 76 Sprint 9778193 12 P M type rr axle ring gear to case bolt 5 536 BEARING CONE CUP Differential Side 72 7 Sprint w 12 bolt cover 7451140 1 w 8 B 83 dia ring gear 76 7 Sprint 7451281 2 G C K B O type 7 Z 8 Z dia ring gear 71 Sprint w 10 12 bolt cover 7451228 2 CONE 15 B x 25 S4 O D HY A150269 71 Sprint w 10 bolt cover 7451282 CUP HY A150269 x 2 Y GI I PARTS DIVISION GENERAL MOTORS CORPORATION SPRINT 57 5 526 5 536 5 6 REV 4 81