A SPEEDOMETER GEAR CHARTS 1983 SPEEDO GEAR USAGE CHART S1 THM 200 A DRIVE DRIVEN GEAR GEAR ADAPTER A 8628837 7 3987919 Natural 345215 332537 0 8241 I 3987920 Blue 345215 3987921 Red 345215 3987922 Gray 345215 I e 8 A I TIRE SIZE 4 4 I 6 45 47 o I 0 0 V P195 75R14 P205I70R14 A 1 P195 75R140R P205 75R14 3 42 A lil I P195 75R14 P13sI7sR140I I A QQ I 205nsR14 P205 70R14 I 19s17sR1s 3 73 Mvs A Q A P205I1sR1s P205 75R150R A ll 11 I 13snsR14 P195 75R140R I 20s17sn14 A Il I P205 70R14 4 11 A I I P195 75R15 P205 75R15 P205 75R150R A WAREHOUSlNG AND DISTRIBUTION DIVISION OF GENERAL MOTORS CORPORATION LT TRUCK 52S 4 000 GROUP SPEEDOMETER GEAR 8 REV 9 82