AT-88 AUTOMATIC TRANSMISSION — Component Groups (Valve Body) (c) Remove the sleeve, plunger, spring and primary regulator valve. INSPECTION OF LOWER VALVE BODY INSPECT VALVE SPRINGS Check for damage, squareness, rust and distorted coils. Measure the spring free height and replace if less than that shown below. Spring Free height mm (in.) Color (1) Primary regulator 56.30 (2.2165) Blue valve (2) Low coast modula- 42.35 (1.6673) None tor valve (3) Intermediate 35.43 (1.3949) Red modulator valve (4) Lock-up relay 32.60 (1.2835) Green valve (5) Oil cooler by-pass 33.32 (1.3118) Yellow valve (6) Pressure relief valve 32.14 (1.2654) None (7) Damping check ball 20.00 (0.7874) None ASSEMBLY OF LOWER VALVE BODY (See page AT-85) 1. INSERT PRIMARY REGULATOR VALVE AND SPRING (a) Set the valve body on the edge and drop in the valve, large end first, and the spring. (b) Make sure that the primary regulator valve fits flush with the valve body.