S10/T10 Blazer 4WD V6-262 4.3L (1989)
Figure No. 4
3)
Remove existing weatherstrip and replace with revised weatherstrip (P/N 15659207). The revised weatherstrip will have plugs inserted inside of it.
When installing the weather-strip align these plugs so that half of the plug is above the striker and half is below (see Figure 4. This is a friction fit,
therefore, no adhesive is required. NOTE: If the subject vehicle was manufactured after the following break points then Service Procedure 2
will not be required as the material called out was incorporated in production.
Shreveport:
1GNCS18Z2L8144761
Pontiac West:
1GNCT18Z7L0122931
Moraine:
1GNDT13Z6M2115163
Service Procedure 3