V 20 P/U 4WD V8-454 7.4L (1987)
Technical Service Bulletin # 9034710
Date: 900901
Doors - Cold Air and Wind Noise
Number:
90-347-10
Section:
10
Date:
September 1990
Corp. Bulletin No.: 061602
Subject:
WIND NOISE/COLD AIR INTRUSION AT DOORS
Model and Year:
1985-86 C/K TRUCK 1987-89 RN TRUCK
TO:
ALL CHEVROLET DEALERS
Wind noise and/or cold air intrusion through front or rear door handles and switches, may be experienced in some 1985-86 C/K, AND 1987-90 RN
model pick ups, Blazers and Suburbans. New seal assemblies are now available to prevent wind noise and/or air intrusion. Part numbers are listed below:
SERVICE PARTS INFORMATION