BRAKES 50 60 65 REAR AXLE 1 1 3772272 3ODSC 34DS H170 T170 17121 17221 Air FE 31945 Rear RH 10 Splines 13 L0ng W 0 Whl Lk C0nt Pri0r to 1978 1 1 3772271 30DSC 34DS H170 T170 17121 17221 Ain FE 31944 Rear LH 10 Splines 13 L0ng W 0 Whl Lk C0nt Pri0r to 1978 1 662501 H170 T170 SE AIr 2210 L 3028 Rr RH 10 Splines 13 R Lg W Rockwell 16 1 x 6 Cam Brk Rep 2398832 W 0 Whl Lk C0nt Eff w 1978 1 662502 H170 T170 SE Air 2210 K 3027 Rr LH 1O Splines 13 2 Lg W Rockwell 16 1 x 6 Cam Brk Rep 2398831 W 0 Whl Lk C0nt Eff w 1978 1 2315501 17121 17221 SE Ain 2210 0 2981 Rr RH 10 Splines 13 44 Lg W Rockwell 16 2 x 7 Cam Brk W 0 Whl Lk C nt Eff w 1978 1 2315502 17121 17221 SE Air 2210 P 2980 Rr LH 1O Splines 13 44 Lg W Rockwell 1G 2 x 7 Cam Brk W 0 Whl Lk C0nt Eff w 1978 1 725057 17121 17221 SE Air 70306 Rr RH Use w Eaton 16 2 x 7 Brk W 0 Whl Lk C0nt Eff w 1978 1 725056 17121 17221 SE Air 70307 Rr LH Use w Eaton 16 1 x 7 Brk W 0 Whl Lk C0nt Eff w 1978 1 1 662501 H170 T17O Air 2210 L 3028 Rr RH 1O Splines 13 L0ng W Rockwell 16 x 6 Cam Brk RepI 2398832 W Whl Lk Cont 1 1 662502 H170 T17O Air 2210 I 3027 Rr LH 1O Splines 13 2 L0ng W Rockwell 16 z x 6 Cam Brk Rep 2398831 W Whl Lk Cont 1 1 667299 H170 T17O Air 76293 Rr RH W Eaton 16 x 6 Cam Brk W Whl Lk Cont 1 1 667300 H170 T17O Air 76294 Rr LH W Eaton 16 2 x 6 Cam Brk W Whl Lk Cont 2 2 3772271 3OD C 34DS Air FE 31944 Frt Unit RH Rr Unit LH 1O Splines 13 4 Lg W 0 Whl Lk C0nt Pri0r to 1978 2 2 3772272 30DSC 34DS Air FE 31945 Frt Unit LH Rr Unit RH 10 Splines 13 4 Lg W 0 Whl Lk C0nt Pri0r to 1978 1 1 662501 30DS 34DS 17121 17221 18121 18221 19201 Air 2210 L3028 Rr RH 1O Splines 13 gz L0ng W Rockwell 16 2 x 7 Brake RepI 2398832 2 Reqd on 6 x 4 W Whl Lk C0nt Pri0r to 1976 2nd Design 1 1 662502 30DS 34D 17121 17221 18121 18221 19201 Air 2210 K 3027 Rr LH 1O Splines 13 sz L0ng W Rockwell 16 2 x 7 Brake RepI 239B831 2 Reqd on 6 x 4 W Whl Lk Cont Pri0r to 1976 2nd Design 2 2315502 34DS 3400 ME Air 2210 O 2981 LH Frt Unit LH Rr Unit 1O Splines 13 44 L0ng Use w Rockwell 16 z x 7 Brk Asm W Whl Lk C0nt Eff w 1976 2nd Design 2 2315501 34DS 3400 ME Air 2210 P 2980 RH Frt Unit RH Rr Unit 1O Splines 13 44 L0ng Use w Rockwell 16 I x 7 Brk Asm W Whl Lk C0nt Eff w 1976 2nd Design 2 725057 34DS ME Air 70307 RH Frt Unit LH Rr Unit Use w Eaton 16 I x 7 Brk Asm W Whl Lk C0nt Eff w 1976 Znd Design 2 725058 34DS ME Air 70306 LH Frt Unit RH Fir Unit Use w Eaton 16 1 x 7 Brk Asm W Whl Lk C0nt EH w 1976 2nd Design 2 725057 3400 Air 70307 B0th Units RH Use w Eaton 16 2 x 7 Cam Brk Asm W Whl Lk C0nt Eff w 1977 2 725058 3400 Air 7030E B0th Units LH Use w Eaton 16 g x 7 Cam Brk Asm W Whl Lk C0nt Eff w 1977 1 2315502 17121 17221 1B121 18221 19201 23221 CE TE Air 2210 O 2981 Rear RH 1O Splines 13 44 L0ng W Rockwell 1G 2 x 7 Brk W Whl Lock C0nt Eii w 1976 2nd Design 1 2315501 17121 17221 18121 18221 19201 23221 CE TE Air 2210 P 2980 Rear LH 1O Splines 13 44 L0ng W Rockwell 16 2 x 7 Brk W Whl Lock C0nt Eff w 1976 2nd Design t WAREI IOU NG AND DISTRIBUTION DIVISION OF GENERAL MOTORS CORPORATION 78TM 5 130 5 130 5 36 N S reference only Added this issue AR PART