SPEEDOMETER GEAR CHARTS 1987 SPEED0 GEAR USAGE CHART V1 2 3 THM 400 CONTINUED D S TIRE SIZE AXLE TRANS T R LT235 85R16 LT235 85R16OR 7 50 16LT 7 50 16LTOOR A 4 56 Z T E NOTE 66 TRANS CODE LDA ENGINE 5 0H L03 8 7 TRANS CODE FWA FFA ENGINE 5 7K L05 6 2J LL4 88 TRANS CODE FNA TBA ENGINE 7 4N L19 454W LE8 89 V2O SERIES I 90 V30 SERIES 04 TRANS CODE TAA TBA ENGINE 35OM LT9 454W LE8 I 1988 GENERAL MOTORS SERVICE PARTS OPERATIONS 1 LIGHT TRUCK 52R REV 1 88 SPEEDOMETER GEAR 57 4 337