C 1500 Truck 2WD V8-350 5.7L (1989)
Figure 2
PRODUCTION CHANGE:
A revised switch is available which incorporates pressure relief grooves into the ball seat area to prevent pressurization (Figure 1). The part number for
the new switch is listed below. The revised switch was put into production during the 1989 model year. Vehicles which have the new design switch can
be identified by the serial number on the transfer case identification tag. An example of the tag and its location on the transfer case is shown in figure 2.
Vehicles with transfer case serial numbers equal to or higher than those given below have the new design switch.
Transfer Case Model
Serial Number Breakpoint
1370-001
1628
1370-002
1338
