K 2500 Truck 4WD V8-379 6.2L DSL VIN C FI (1989)
Figure No. 2
DATE OF PRODUCTION CHANGE:
(Figure No. 2)
Starting on November 14,1988, Julian Date 319, all THM 700-R4/HYDRA-MATIC 4L60 models use the new control valve assemblies.
SERVICE ACTION:
Past THM 700-R4 control valve assemblies that used the converter clutch throttle valve and sleeve (non-ECM controBed TCC apply) wfll be maintained
for service. Service control valve assemblies containing the converter dutch throttle valve and sleeve will continue to be available through GMSPO. The
THM 700-R4AlMRA-MATIC 4L60 control valve assemblies build with the converter clutch bore plug (ECM controlled TCC apply) are serviceable
with the new control valve assembly. The new service control valve assembhes (no TCC bore) will supersede the appropriate applications as current
service stock is depleted.
