70 Ser 10 Blazer 250 exc D D 3015160 1 82 20 w out oil cooler ldent No 3015160 code letters RO 67 Ser 20 30 D D 292 exc A T 3010161 1 113 15 w out oil cooler 67 Ser 20 D D 250 exc A T 3010162 1 92 25 w out oil cooler 67 Ser 30 w T H 327 exc C A C H D Cooling 67 Ser 30 T H w 327 exc D D C A C H D Cooling 68 Ser 10 20 A T w 327 exc D D C A C 68 Ser 30 D D T H w 327 exc C A C H D Cooling 69 Ser 30 D D w T H 400 350 69 Ser 10 thru 30 w T H 400 8 cyl exc D D 1 4 WD 3019308 1 140 50 w oil cooler 68 70 Ser 10 Blazer w H D Rad 307 3019310 1 99 60 w out oil cooler 68 70 Ser 10 D D w A T 3017986 1 112 60 w oil cooler Ident No 3017986 code letters RW 68 70 Ser 20 30 3 53 3014647 1 102 60 Ident No 3014647 code letters DW 67 69 Ser 10 283 307 exc Air Cond H D Cooling A T 4 11 rear axle 70 Ser 10 Blazer 307 3019303 1 88 90 w 0 oil cooler Ident No 3019303 code letters RD 69 Ser 10 thru 30 w P G T H exc Air Cond H D Cooling 350 396 69 Ser 10 w T l l 350 exc C A C Roof Mtd A C 4 WD 69 Blazer w A T exc C A C 350 70 G 10 20 250 307 70 Ser 10 thru 30 6 cyl 307 3019304 1 110 60 w oil cooler Ident No 3019304 code letters RJ 67 68 Ser 10 20 C A C w A T exc 327 67 68 Ser 10 20 H D Cooling w A T 67 68 Ser 10 20 w A T exc H D Cooling C A C 68 Ser 10 20 C A C w A T 327 396 69 Ser 10 thru 30 Air Cond H D Cooling w P G T H 400 exc 350 396 69 Blazer w C A C H D Cooling A T exc 350 70 Blazer w C A C 250 307 70 Ser 10 thru 30 w Air Cond 6 cyl 307 70 Ser 10 w Air Cond H D Cooling 307 70 Ser 20 30 307 3019305 1 123 55 w oil cooler ldent No 3019305 code letters RL 69 Ser 10 thru 30 w C A C H D Cooling 350 exc P G T H 400 70 Ser 10 thru 30 Blazer w Air Cond 350 3020005 1 149 40 w oil cooler Ident No 3020005 code letters RG 69 Ser 10 thru 30 w Air Cond H D Cooling P G T H 400 350 69 Blazer w C A C H D Cooling A T 350 3020006 1 169 10 w oil cooler Ident No 3020006 code letters RO 69 Ser 10 350 exc H D Cooling H D Rad Air Cond A T 4 11 rear axle i 1971 CHEVROLET MOTOR DIVISION GENERAL MOTORS CORPORATION P A 31 1 219 1 219 1 34 REV 6 71