62 63 CHEVY w P Trac 3 4 x 4 25 32 V cut Spicer 30931 531312 2 6 50 62 CHEVY exc P Trac 63 CHEVY exc metallic linings P Trac 47 64 x 4 25 32 long 3714784 2 1 25 J 5 518 SCREW Pinion Shaft 62 CHEVY exc P Trac 63 CHEVY exc metallic linings P Trac lock 5 8 l8 472546 1 20 5 526 GEAR Differential Pinlon 60 62 CORVAIR F C 63 CORVAIR F C w P Trac 10 teeth shaft hole 11 16 6255502 2 2 55 62 CHEVY exc P Trac 63 CHEVY exc metallic linings P Trac 10 teeth shaft hole 47 64 3748259 2 3 55 62 63 CHEVY w P Trac 10 teeth daub of orange paint 2370715 4 3 15 5 528 GEAR Differential Side 60 ALL left 25 splines 16 teeth 6255763 1 6 65 60 ALL right 25 splines 16 teeth 6255764 1 5 90 61 62 CORVAIR F C exc P Trac right or left 62 CORVAIR w P Trac 63 CORVAIR F C w P Trac left 25 splines 16 teeth 3784924 A R 4 75 62 CORVAIR w P Trac 63 CORVAIR F C w P Trac right 25 sp1ines 16 teeth 3815439 1 5 75 y 62 63 CHEVY w P Trac right or left daub of orange paint 3744618 2 3 70 62 CHEVY exc P Trac right or left 16 teeth 3748257 2 6 40 63 CHEVY exc P Trac right or left 16 teeth 3820638 2 6 40 5 529 GEAR UNIT Ring and Pinion 60 ALL w 3 SPD 3 55 to 1 ratio 3795112 1 50 75 60 ALL w P G 3 55 to 1 ratio 6257140 1 50 75 60 ALL w 3 SPD 3 89 to 1 ratio 3795108 1 50 75 61 63 CORVAIR exc P G 3 55 to 1 ratio 3781695 1 50 75 61 63 CORVAIR w P G 3 55 to 1 ratio 3781704 1 50 75 61 63 CORVAIR w P G 3 27 to 1 ratio 3781708 1 50 75 60 63 CORVAIR F C w P G 3 89 to 1 ratio 3781706 1 50 75 61 63 CORVAIR exc P G 3 27 to l ratio 3781702 1 50 75 61 63 CORVAIR F C exc P G 3 89 to 1 ratio 3781697 1 50 75 62 63 CHEVY 3 36 to 1 ratio 3790900 1 45 70 62 63 CHEVY 3 08 to 1 ratio 3790901 1 45 70 62 63 CHEVY 4 cyl 3 55 to 1 ratio 3790899 1 45 70 NOTE Axle ratio No of Ring Gear Teeth No of Pinion Gear Teeth 5 531 SCREW BOLT Hypold Drive Gear 60 63 CORVAIR F C 3 8 24 X 13 32 3769936 6 08 62 63 CHEVY 1 3 8 24 X 25 32 596529 10 08 Not required in this group See group 5 002 BOLT 3 8 24 X 21 32 3697704 08 3 5 51 Chevrolet Motor CORVAIR CHEVY 2 General Motors Corporation