Radio - Speaker Grille Warpage
89chevy09Number: 88-388-10
Section: 10
Date: JAN., 1989
Subject: SPEAKER GRILLE WARPAGE
Model and Year: 1988 C/K TRUCK
FIGURE NO. 1:
TO: ALL CHEVROLET DEALERS
Some 1988 C/K trucks have experienced speaker grille warpage. A new grille has been designed with stiffening ribs to prevent this condition. Before installation of the new grille (2nd design) it will be necessary to modify the grille and the raised area in the speaker opening of the interior panel. Using the old speaker grille (1st design) as a reference point, file the area on the interior panel that lines up below the old grille notch (see Figure No. 1). On the grille (2nd design) underside measure 4 inches from the rear edge and remove approximately 1/2 inch from the outer stiffening rib (See Figure No. 1) . These operations should be performed to accommodate the new grille design and prevent interference.
IMPORTANT: Modification is only required on the RH speaker grille and IP speaker opening. The LH speaker grille will fit as is.
If a plastic grille with this condition requires replacement, service with the paint-to-match base grille stocked by GMSPO. Cloth covered grilles should be replaced by the same color grille stocked by GMSPO.
All Plastic Cloth Covered
Trim
Base Grille P/N Grille
P/N Code
(Left) 15613025 Blue (Left)
15613029 24I
(Right) 15613026
(Right) 15613030 24I
Beige (Left) 15613033 69I
Garnet (Right) 15613034 69I
Red (Left) 15613035 78I
(Right) 15613036 78I
Gray (Left) 15613037 82I
(Right) 15613038 82I
Parts are currently available from GMSPO.
For repairs to vehicles under warranty, use:
Labor Op: R0910 - Front Right R0911 - Front left
Labor Time: .2 Hr.
Add: .3 Hr - If base grille must be color coated