56 Ser 5 6 7 8 w 2 Spd axle 60 62 Ser 40 w 4 Spd ADAPTER UNIT 7 95 5 83 axle ratio w 10 x 22 5 tires 56 Ser 10 TDM 1565812 1 21 08 8 x 22 5 9 x 22 5 10 x 22 5 tires 56 Ser 5 6 7 8 w Sgl Spd axle exc 4 Spd TDM ADAPTER UNIT 6 17 and 7 20 axle ratio w 8 x 22 5 9 x 22 5 tires 56 Ser 7 8 w 16 000 Ib Sgl Spd axle 7 17 axle ratio w 8 x 22 5 9 x 22 5 10 x 22 5 tires 57 58 Ser 9 10 exc TDM 7 17 axle ratio w 8 25 x 20 9 x 22 5 tires 57 58 Ser 9 10 exc TDM 59 Ser 9 10 exc TDM 7 67 axle ratio w 9 00 x 20 10 00 x 20 10 x 22 5 60 66 All 7 67 axle ratio w 8 25 x 20 tires 67 68 For application see chart in 4 337 group 1584277 1 22 74 7 20 axle ratio w 7 00 x 20 7 x 22 5 tires stamped 1584276 65 Ser 50 4 cyc Diesel w 4 Spd 67 68 For application see chart in 4 337 group 6409231 1 23 98 ADAPTER UNIT 7 20 axle ratio w 7 00 x 20 7 x 22 5 tires 65 66 Ser 50 60 4 cyc Diesel ADAPTER UNIT 4 88 6 78 5 29 7 20 5 41 7 44 axle ratios 65 Ser 80 4 cyc Diesel 4 87 6 65 axle ratio 65 66 Ser 60 TDM 2 cyc Diesel w Clark 5 Spd 6409741 A R 25 91 4 88 axle w 9 x 20 10 x 20 10 x 22 5 11 x 22 5 tires 60 Ser 60 70 w 15 000 Ib 2 Spd axle 61 Ser 50 thru 70 w 15 000 Ib 2 Spd axle ADAPTER ASSY speedometer 65 66 Ser 50 w 15 000 lb 2 Spd axle 8 72 6 40 axle ratio 65 66 Ser 60 4 cyc Diesel w 16 000 Ib 2 Spd axle 5 41 6 16 8 48 6 61 9 09 axle ratios 66 Ser 60 4 cyc Diesel w 15 000 Ib 2 Spd axle 3775764 1 16 75 5 29 7 20 5 83 7 95 6 50 8 85 axle ratios 60 61 Ser 60 70 w 16 000 lb 5 2 Spd axle 60 62 Ser 80 w 18 000 lb 2 Spd axle 62 Ser 60 w 17 000 Ib 2 Spd axle 62 Ser 50 60 w 15 17 000 lb 2 Spd axle 65 Ser 60 TDM 4 cyc Diesel w 18 500 lb 2 Spd axle ADAPTER ASSY electric speedo 9 97 7 17 9 04 6 50 9 77 7 17 8 87 7 50 axle ratio 65 66 Ser 60 4 cyc Diesel w 15 000 16 000 Ib 2 Spd axle Air Equip exc Tilt TDM 7 95 5 83 9 97 7 17 6 77 4 87 8 72 6 40 axle ratio 65 Ser 80 4 cyc Diesel w 18 500 2 Spd axle Tach exc Tilt Air Equip 4 87 6 75 5 57 7 60 6 14 8 38 6 50 8 87 7 19 9 77 axle ratio 65 66 Ser 60 4 cyc Diesel w 17 000 lb 2 Spd axle tach exc Tilt LCF 4 88 6 78 5 57 7 75 6 14 8 54 6 50 9 04 7 17 9 97 axle ratios 66 Ser 60 TDM 4 cyc Diesel w 28 000 Ib 2 Spd axle 3769228 1 17 30 5 57 7 59 axle ratio 62 Ser 60 Diesel w Clark 5 Spd exc close ratio ADAPTER ASSY 6 17 axle ratio w 8 x 22 5 8 25 x 20 9 x 22 5 tires 63 66 Ser 60 Diesel Clark 5 Spd w 2 Spd axle 5 83 7 95 axle w 7 50 x 20 8 x 22 5 tires 63 66 Ser 60 Diesel Clark 5 Spd 6 17 axle ratio w 9 x 22 5 8 25 x 20 tires L 1971 CHEVROLET MOTOR DIVISION GENERAL MOTORS CORPORATl0N P A 31SL L 4 329 4 329 4 66 R5v 5 7