|F081 (Warranty Only)||AXODE, '91|
|F082 (Warranty Only)||AXODE, '92|
|F083 (Warranty Only)||AX4S, '93-'98 (Casting F4 with Tan Lockup Solenoid)|
|F084 (Warranty Only)||AX4S, '97-'98 (Casting F4 with Blue Lockup Solenoid)|
|F085||AX4S, '98-'03 (Casting XF or YF)|
Beginning in 1997 with Lincoln and midway through 1998 on other models, the lockup solenoid changes from tan to blue. The blue lockup solenoid has approximately 14 Ohms of resistance, as opposed to 3 Ohms of resistance on the lockup solenoids of earlier units. We STRONGLY RECOMMEND checking the color of ALL lockup solenoids from '97-later before ordering.
The blue arrow indicates the lockup solenoid location.