R 1500 P/U 2WD V6-262 4.3L (1987)
Valve Body: All Technical Service Bulletins
A/T - 700R4 Valve Body Modification
SIL 85-21
SUBJECT: 700-R4
For start of production 1985, the converter clutch shift valve train was eliminated on units where the converter clutch is controlled by the computer.