1986 SPEED0 GEAR USAGE CHART K1 2 3 THM 700 Continued A iv D A P TIRE SIZE AXLE TRANS T R LT235 B5R15 LT235 BSRIBOR V 15 HH P215 75Rl5 n S P235 l5R15 P235 75R15OR P235 75R15XL 31XlU 5R15LT 7 5U 16LT 7 SOR l5LT 7 50R 16LTOOR 3 73 r 1 1990 GENERAL MOTORS SERVICE PARTS 0PEHAT ONS LT TRUCK 52R REV 9 90 was 4 450